Source code:
Q-Qubit.js
Perfect pairs
A qubit
is just a pair of numbers.
That’s it—two
shiny happy number values,
holding hands.
Let’s call the first number
“alpha
”
and the second number
“beta
.”
Look at this handsome couple:
alpha
, beta
We can package
alpha
and
beta
together
by storing them in a very small
matrix
that is only one unit wide
and two units tall—and
because this matrix is only one unit wide
it is not merely a matrix, it’s also a
vector.
(What’s a matrix?
What’s a vector?
See the Matrix
page
for quick refreshers on both.)
So when you think of a qubit you can imagine it as
a 1 × 2 matrix
containing its
alpha
value on the top
and its
beta
value on the bottom,
like so:
alpha |
beta |
Now that we know a qubit is a matrix, we also know that we can perform addition with qubits, perform multiplication with qubits, and so on—just as one can do with any matrix. (That will become rather important when we eventually introduce the idea of quantum gates, which are also matrices.)
Predictable couples
The thing that makes this pair of numbers special
is their relationship to each other,
which we can define as follows:
alpha
multiplied by
alpha
,
added to
beta
multiplied by
beta
,
must always equal one.
We can express this as an equation:
The parentheses in the equation above
are not strictly necessary
as the
“order of operations” rules
dictate that these multiplications
must be carried out prior to
the additions—but emphasis can often be more helpful than brevity when learning something new.
And now that we understand this relationship
we can express it more compactly
using exponents rather than multiplications:
alpha
squared
added to
beta
squared
must always equal one.
A bit further below we’ll add one small wrinkle to this equation, but otherwise this is what defines a qubit. That’s it. It’s that easy.
Named couples
Let’s start plugging in values for
alpha
and
beta
.
Each different value combination makes a different sort of qubit.
The most frequently used qubit value combinations
have names
and belong to a set of named vectors called
Jones vectors.
We’ll begin with the two simplest qubits.
This first qubit is named
Horizontal
and the second is named
Vertical.
Both are composed from a zero and a one
and we can see that this
satisfies our qubit definition above.
alpha = 1 |
beta = 0 |
alpha = 0 |
beta = 1 |
What does it mean to be named
Horizontal or
Vertical?
Where do these orientation-based names come from?
Are there more orientation-based names?
To understand, let’s plot these two qubit vectors on a graph.
We’ll use the
alpha
value
as our x coordinate
and the
beta
value
as our y coordinate:
alpha |
beta |
alpha
, beta
)
Plotting
alpha
and
beta
as x and y
yields (1, 0) for a
Horizontal qubit
and (0, 1) for a
Vertical qubit.
We can see that the values from a Horizontal qubit, when plotted as x and y, form a horizontal line from the origin (0, 0) out to (1, 0). Meanwhile, when we plot the values of a Vertical qubit as x and y, it forms a vertical line from the origin (0, 0) up to (0, 1). Before we introduce more named Jones vectors let’s take what we’ve learned about qubit values and generalize it for vectors with more than two elements so we can better understand what these qubit values truly mean.
State vectors
Did it seem strange to read that
the qubit we refer to as “0
” begins with an
alpha
value of 1?
(Or that the qubit we refer to as “1
” begins with an
alpha
value of 0?)
Does that mean we refer to qubits
by their beta
values?
Is that some sort of quantum computing convention?
alpha = 1 |
beta = 0 |
The short answer is “No.”
To understand why,
we must recognize that
a qubit is the simplest example of a
quantum state vector—a
list of all possible states
for a quantum system to exist in,
with each possible state accompanied by the probability
that the system is indeed in that state.
When a single qubit is measured
there are only two possible states
for it to be in:
0
or 1
.
This is why a qubit is represented by a two-element vector;
one element per possible outcome.
On this very short list of possible outcomes,
0
is the first possible outcome
and 1
is the second possible outcome.
When we say that a Horizontal qubit is “0
”
we’re not referring to the qubit’s
beta
value at all.
We’re instead highlighting the fact that
the 1
in this (1, 0) pair
happens to be in the “zeroth” slot—the
alpha
slot
of this
(alpha
,
beta
) pair.
We’re saying that
for the possible outcome “0
”
our qubit is voting 1, or TRUE
.
At the same time we’re saying that
for the possible outcome “1
”,
our qubit is voting 0, or FALSE
.
Outcome will be 0 :
TRUE (1 )
|
Outcome will be 1 :
FALSE (0 )
|
For good measure let’s look at the converse example.
Outcome will be 0 :
FALSE (0 )
|
Outcome will be 1 :
TRUE (1 )
|
To further clarify—and
to hint at how a quantum circuit
functions—let’s look at a state vector
for a quantum system composed of two qubits.
With one qubit there were two possible outcomes:
0
and 1
.
(And because there are only two elements of a qubit vector we named them
alpha
and
beta
to make referring to them more convenient.)
For two qubits there are four possible outcomes:
00
,
01
,
10
, and
11
.
(We won’t bother to name elements of state vectors larger than two.
It would get unwieldy rather quickly.)
Which of those four possible outcomes
might the following state vector represent?
| 0 |
| 0 |
| 1 |
| 0 |
two qubits.
The above vector represents four possible outcomes
and we see that
three out of those four possible outcomes
are FALSE
(0
).
Meanwhile, the third of those four possible outcomes
is TRUE
(1
).
Because the result value of the third possible outcome is
10
we see that this two qubit vector state
is telling us it represents a result of
10
.
Let’s break this down the same way we did
with
Horizontal
and
Vertical
qubits.
Outcome will be 00 :
FALSE (0 )
|
Outcome will be 01 :
FALSE (0 )
|
Outcome will be 10 :
TRUE (1 )
|
Outcome will be 11 :
FALSE (0 )
|
two qubits.
We’ve learned that a single qubit is the simplest example of a quantum state vector. It is a list of the votes per each possible outcome—and for a single qubit there are only two possible outcomes. We’ve also seen that we can represent the state of a multi-qubit system where there are more than two possible outcomes.
Ket notation
Paul Dirac’s “bra-ket” notation offers us a more compact means of describing quantum state vectors—and by extension, qubits. (While “bra-ket” offers us two named elements—“bra” and “ket”—for our purposes we need only focus on the latter.) Kets represent the result value that our quantum vector state represents. They are expressed as values enclosed between a vertical bar and a rightward angle bracket. The following is pronounced “ket zero.”
We began
by stating that
a Horizontal qubit
represents “0
”,
and later explained why this was so.
Kets provide us a convenient way
to refer to this result state directly
as in-line text
rather than a clunky matrix.
| 1 |
| 0 |
Similarly, we defined a
Vertical qubit
as representing “1
”
and illustrated this as well.
We can now also express this column vector as a ket.
| 0 |
| 1 |
The convenience of ket notation becomes more apparent as we represent state vectors that are larger than a single qubit. (For n qubits we must use a state vector that has 2n elements. Meanwhile our ket values are still just n digits long.) Here we express four possible states of a two qubit system as both state vectors and their equivalent kets.
| 1 |
| 0 |
| 0 |
| 0 |
| 0 |
| 1 |
| 0 |
| 0 |
| 0 |
| 0 |
| 1 |
| 0 |
| 0 |
| 0 |
| 0 |
| 1 |
Superposition
You’ve probably heard the term
“superposition”—and along with that
you’ve likely been spoonfed some measure of mysticism;
pizza-bagels and whatnot.
In the real, physical world, superposition is indeed weird magic.
But mathematically it’s dead simple:
Superposition is any qubit state
where the
alpha
and
beta
values are anything other than
exactly 0 or exactly 1.
Up until now we’ve thought of
alpha
and
beta
values as being either
TRUE
(1) or FALSE
(0)
but each is actually capable of expressing an entire spectrum between
TRUE
(1) and FALSE
(0).
Let’s investigate that idea by building on what we’ve already learned.
Given the constraint
alpha
2 +
beta
2 = 1, if we plot all of the possible
alpha
and
beta
values on a graph
as x and y respectively,
the outcome is a circle with a radius of 1 centered at the origin (0, 0);
ie. a unit circle.
All possible combinations of
alpha
and
beta
lay on the perimeter of this circle.
To illustrate this, here’s a plot of named
Jones vectors
as well as their conjugates.
| 1 |
| √ 2 |
| 1 |
| √ 2 |
| -1 |
| √ 2 |
| 1 |
| √ 2 |
| -1 |
| √ 2 |
| -1 |
| √ 2 |
| 1 |
| √ 2 |
| -1 |
| √ 2 |
What the
alpha
and
beta
values represent are the individual
probability amplitudes
for each outcome; that a qubit
when measured will be in either a
0
or a
1
state.
Measurement itself causes a qubit’s
probability wave to collapse,
bringing an end to its superposition.
The probability that upon measurement a qubit’s
probability amplitude
will
collapse to
0
is alpha
2,
while the probability that it will
collapse to
1
is beta
2.
We already know that a Horizontal qubit exists in a state of 0 (“ket zero”) and therefore has a 100% chance of being measured as 0.
| 1 |
| 0 |
Similarly, we also know that a Vertical qubit exists in a state of 1 (“ket one”) and therefore has a 100% chance of being measured as 1.
| 0 |
| 1 |
Meanwhile, a Diagonal qubit exists in a state of superposition as + (“ket plus”). It is a state which does not have a definite result value prior to measurement but it does of course have a definite state vector and that state vector has a positive orientation. (Recall our unit circle diagram above to see how this value lays in a positive quadrant of the graph.) There is a 50% chance of it being measured as 0 (“ket zero”) and a 50% chance of it being measured as 1 (“ket one”).
| 1 |
| 1 |
| 1 |
| √ 2 |
| 1 ÷ √ 2 |
| 1 ÷ √ 2 |
alpha 2 + beta 2
|
1 |
| (1 ÷ √ 2)2 + (1 ÷ √ 2)2 | 1 |
| (1 ÷ 2) + (1 ÷ 2) | 1 |
| 0.5 + 0.5 | 1 |
| 1 | 1 ✓ |
And finally, an Anti-diagonal qubit also exists in a state of superposition, but as - (“ket minus”). Like the Diagonal qubit it has a 50% chance of being measured as 0 (“ket zero”) and a 50% chance of being measured as 1 (“ket one”).
| 1 |
| -1 |
| 1 |
| √ 2 |
| 1 ÷ √ 2 |
| -1 ÷ √ 2 |
alpha 2 + beta 2
|
1 |
| (1 ÷ √ 2)2 + (-1 ÷ √ 2)2 | 1 |
| (1 ÷ 2) + (1 ÷ 2) | 1 |
| 0.5 + 0.5 | 1 |
| 1 | 1 ✓ |
What does it mean that a Diagonal qubit state and an Anti-diagonal qubit state collapse with the same probabilies? What about their conjugates which also behave in this same fashion? These questions begin to hint at the quirks of quantum circuits; the aspects of quantum computing that quantum algorithms are engineered to take advantage of.
Complex couples
We’ve spent the majority of this primer
describing qubits as containing
alpha
and
beta
values ranging from 0 up to 1.
The unit circle above
illustrates that these values can also range from
0 down to -1.
While all of this remains true,
the story is slightly more complex.
Qubits are actually made of
complex number pairs,
meaning there is an imaginary component.
(See the ComplexNumber
page for a quick refresher on
real,
imaginary, and
complex numbers.)
This means one qubit is actually made of four parts:
The alpha
value
has a ① real
component and an ②
imaginary
one.
The beta
value
also has a ③ real
component and an ④
imaginary
one.
To account for this we must slightly evolve
our definition of a qubit;
specifically the relationship between its
alpha
and
beta
values.
Rather than simply adding their squares together,
we must instead add the squares of their
absolute values.
Our evolved equation,
which indicates absolute values
by enclosing numbers between vertical bars,
now looks like this:
By taking the absolute values
of
alpha
and
beta
before squaring them,
we continue to ensure that our sum of squares
will equal exactly 1; that it continues to equal a simple,
real number
rather than an
imaginary or
complex number.
The Bloch sphere
And that’s really it. That’s what makes a mathematical qubit. But with that last-minute addition of complex numbers above, we can no longer visualize a qubit as a two-dimensional unit circle. Instead we must map our two complex values onto a three dimensional graph known as a Bloch sphere. Select one of the following qubit states to observe its graph on the Bloch sphere. Tap and drag the sphere itself to rotate it.
| 1 |
| 0 |
| 1 |
| -i |
| 1 |
| √ 2 |
—˚
polar angle θ (theta)
—˚
azimuth angle ϕ (phi)
Constructor
Qubit
Function([ Q.Matrix* ][
alpha: Number or Q.ComplexNumber,
beta: Number or Q.ComplexNumber [,
label: String [, name: String ]]]) => Q.Qubit
Qubit
extends Q.Matrix
and therefore inherits its
static and
prototypal properties.
The Qubit
constructor
can accept as a single argument a
Q.Matrix
instance,
or anything that inherits from
Q.Matrix
—such as
a Q.Qubit
instance—and will
return a new qubit constructed from the passed object’s values.
Alternatively, the constructor
expects two arguments that are each either
instances of Number
or
Q.ComplexNumber
which will will then correspond to the qubit’s
alpha
and
beta
values.
Further, an optional third argument may be supplied for
label
—expected
in the form of a single character String
—to be
used as a tiny label for the qubit when represented in diagram or graphic form.
Even further, an optional fourth argument may be supplied for
name
—expected
as a String
—to be
used as a more descriptive name for the qubit.
If arguments for
label
or
name
are not supplied then
the constructor checks against the list of existing
constants
and if a qubit with matching
alpha
and
beta
values is found then the corresponding
label
and / or
name
will be copied to this new instance.
When a new qubit is created it internally invokes the
Q.Matrix
constructor,
such that new Q.Qubit(
alpha,
beta
)
is similar to
new Q.Matrix([
alpha ],
[ beta
])
.
If the two supplied values do not satisfy the assertion that
|alpha
|2 +
|beta
|2 = 1
then an error is thrown.
var fox = new Q.Qubit( 1, 0 )
-
- alpha
Q.ComplexNumber
The first of two values that identify the state of a qubit. -
- beta
Q.ComplexNumber
The second of two values that identify the state of a qubit. -
- label
String
Single character representing this qubit state, for example ‘H’ for horizontal. This can be passed to the constructor as an optional third argument or automatically assigned based on existingQ.Qubit.constants
If no match is found among existings constants the ‘?’ character is assigned. -
- name
String
The name of the qubit state, assigned based on existingQ.Qubit.constants
. If no match is found among existings constants the name is left empty. -
- index
Number
An identification number assigned to the instance based on the auto-incrementing static numberQ.Qubit.index
. Used for minding the total number of instances created.
Static properties
Because Q.Qubit
extends Q.Matrix
,
the following append or replace the latter’s existing
static properties.
-
- help
Function ⇒ String
Calls and returns the value ofQ.help
, passingQ.Qubit
as the argument. -
- index
Number
The number of instances created so far.
Constants and constant creation
-
- constants
Object
Constants are appended directly to theQ.Qubit
object. For convenience they are also appended to thisQ.Qubit
.constants object to make looking up constants in the JavaScript console trivial, and to make iterating across all constants convenient via functions likeObject.entries
,Object.keys
,Object.values
, and so on. The intention that a property act as a constant is signaled by its labelling in all-uppercase. -
- createConstant
Function( key: String, value: * )
Appends a property named bykey
with a value ofvalue
to both theQ.Qubit
object and itsconstants
property. -
- createConstants
Function( … )
Expects an even number of arguments. Will use each pair in the sequence of arguments to callcreateConstant
.
Constants — Jones Vectors
Q.Qubit
provides the following built-in Jones vectors.
-
- HORIZONTAL
Q.Qubit
Initialized asnew Q.Qubit( 1, 0, 'H', 'Horizontal' )
. Commonly thought of as “zero” or “off.” Described by the following matrix:
1 0 -
- VERTICAL
Q.Qubit
Initialized asnew Q.Qubit( 0, 1, 'V', 'Vertical' )
. Commonly thought of as “one” or “on.” Described by the following matrix:
0 1 -
- DIAGONAL
Q.Qubit
Initialized asnew Q.Qubit( Math.SQRT1_2, Math.SQRT1_2, 'D', 'Diagonal' )
. Described by the following matrix:
×1 1 1 √ 2 -
- ANTI_DIAGONAL
Q.Qubit
Initialized asnew Q.Qubit( Math.SQRT1_2, -Math.SQRT1_2, 'A', 'Anti-diagonal' )
. Described by the following matrix:
×1 -1 1 √ 2 -
- RIGHT_HAND_CIRCULAR_POLARIZED
Q.Qubit
Initialized asnew Q.Qubit( Math.SQRT1_2, new Q.ComplexNumber( 0, -Math.SQRT1_2 ), 'R', 'Right-hand Circular Polarized' )
. Described by the following matrix:
×1 -i 1 √ 2 -
- LEFT_HAND_CIRCULAR_POLARIZED
Q.Qubit
Initialized asnew Q.Qubit( Math.SQRT1_2, new Q.ComplexNumber( 0, Math.SQRT1_2 ), 'L', 'Left-hand Circular Polarized' )
. Described by the following matrix:
×1 i 1 √ 2
Inspection
-
- collapse
Function( Q.Qubit ) ⇒ Q.Qubit
Returns a newQ.Qubit
randomly chosen to be eithernew Q.Qubit( 1, 0 )
— TheHORIZONTAL
constant — ornew Q.Qubit( 0, 1 )
— TheVERTICAL
constant — based on the probability of the supplied qubit argument. -
- applyGate
Function( Q.Qubit ) ⇒ Q.Qubit
Description TK. -
- areEqual
Function( a: Q.Qubit, b: Q.Qubit ) ⇒ Boolean
If thealpha
of each are withinQ.EPSILON
and thebeta
of each are withinQ.EPSILON
then returnstrue
, otherwisefalse
. -
- toBlochSphere
Function( Q.Qubit ) ⇒ Object
Returns the following object for a given qubit’s probability state, useful for rendering a Bloch Sphere representation.{ theta, // Polar angle θ. phi, // Azimuth angle ϕ. // Bloch vector, // the surface point on a Bloch Sphere. vector: { x, y, z }, // Bloch vector “corrected” // for Y-up coordinate systems. position: { x: vector.y,// Note this Y here. y: vector.z,// Note this Z here. z: vector.x // Note this X here. } }
-
- toText
Function( Q.Qubit ) ⇒ Q.Qubit
Description TK. -
- findByBeta
Function( Q.Qubit ) ⇒ Q.Qubit
Description TK.
Prototype properties
Because Q.Qubit
extends Q.Matrix
,
the following append or replace the latter’s existing prototype properties.
Non-destructive methods
-
- clone
Function ⇒ Q.Qubit
Returns a new instance with the values foralpha
andbeta
copied from this instance. -
- collapse
Function ⇒ Q.Qubit
Calls and returns the result of thecollapse
static method, passing the calling instance as an argument. -
- applyGate
Function( gate: Q.Gate ) ⇒ Q.Qubit
Description TK. -
- isEqualTo
Function( otherQubit: Q.Qubit ) ⇒ Boolean
Calls and returns the result of theareEqual
static method, passing the calling instance andotherQubit
as arguments. Will not return aQ.Qubit
instance, and therefore halts “Fluent interface” method chaining along this prototype. -
- toBlochSphere
Function ⇒ Object
Calls and returns the result of static methodQ.Qubit.toBlochSphere( this )
. Will not return aQ.Qubit
instance, and therefore halts “Fluent interface” method chaining along this prototype. -
- toText
Function ⇒ String
Description TK. Will not return aQ.Qubit
instance, and therefore halts “Fluent interface” method chaining along this prototype.
Destructive methods
-
- copy$
Function( otherQubit: Q.Qubit ) ⇒ Q.Qubit
Overwrites this instances’srows Array
with that ofotherQubit
. -
- collapse$
Function ⇒ Q.Qubit
Expects no arguments. Calls the non-destructivecollapse
method, then usescopy$
to overwrite this qubit’s values. -
- applyGate$
Function( gate: Q.Gate ) ⇒ Q.Qubit
Description TK.


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Presence
public final class Presence
Undocumented
-
Undocumented
Declaration
Swift
public static let defaultOptions: Presence.PresenceOptions
-
Undocumented
See moreDeclaration
Swift
public enum PresenceEventType : String
-
Undocumented
Declaration
Swift
public struct PresenceOptions
-
Undocumented
Declaration
Swift
public typealias PresenceMap = [String : Array<Meta>]
-
Undocumented
Declaration
Swift
public typealias PresenceState = [String : PresenceMap]
-
Undocumented
Declaration
Swift
public typealias Diff = [String : PresenceState]
-
Undocumented
Declaration
Swift
public typealias Meta = [String : Any]
-
Undocumented
Declaration
Swift
public typealias OnJoinCallback = ((_ key: String, _ currentPresence: PresenceMap?, _ newPresence: PresenceMap) -> Void)?
-
Undocumented
Declaration
Swift
public typealias OnLeaveCallback = ((_ key: String, _ currentPresence: PresenceMap, _ leftPresence: PresenceMap) -> Void)?
-
Undocumented
Declaration
Swift
public typealias OnSync = (() -> ())?
-
Undocumented
Declaration
Swift
public typealias ListBy = (_ key: String, _ presence: PresenceMap) -> Any
-
Undocumented
Declaration
Swift
public let channel: Channel
-
Undocumented
Declaration
Swift
private(set) public var joinRef: String?
-
Undocumented
Declaration
Swift
private(set) public var pendingDiffs: Array<Presence.Diff>
-
Undocumented
Declaration
Swift
private(set) public var state: PresenceState
-
Undocumented
Declaration
Swift
private(set) public var options: PresenceOptions
-
Undocumented
Declaration
Swift
public var isPendingSyncState: Bool { get }
-
Undocumented
Declaration
Swift
public var onJoin: Presence.OnJoinCallback
-
Undocumented
Declaration
Swift
public var onLeave: Presence.OnLeaveCallback
-
Undocumented
Declaration
Swift
public var onSync: Presence.OnSync
-
Undocumented
Declaration
Swift
public convenience init(channel: Channel)
-
Undocumented
Declaration
Swift
public init(channel: Channel, options: PresenceOptions)
-
Used to sync the list of presences on the server with the client’s state. An optional
onJoin
andonLeave
callback can be provided to react to changes in the client’s local presences across disconnects and reconnects with the server.Declaration
Swift
static public func syncState(_ pState: PresenceState, newState pNewState: PresenceState, onJoin pOnJoin: OnJoinCallback, onLeave pOnLeave: OnLeaveCallback) -> PresenceState
Parameters
pState
the current PresenceState
pNewState
the new PresenceState sent from the server
pOnJoin
an optional callback for the client to react to new users joining
pOnLeave
an optional callback for the client to react to users leaving
Return Value
A new PresenceState
-
Undocumented
Declaration
Swift
static public func syncDiff(_ pState: PresenceState, diff: Diff, onJoin pOnJoin: OnJoinCallback, onLeave pOnLeave: OnLeaveCallback) -> PresenceState


%WarningList%
LUN latency over the entire data collection. X-Axis represents Date-Time, Y-Axis represents latency [ms]. Average latency: %PGRespAvg%, peak: %PGRespMax%.
The latency histogram provide insight into the distribution of response times for IO requests. X-Axis represents latency, Y-Axis represents latency value rate [%].
%LatencyTable%
Top Ten table of the LUNs with the highest average latency.
Number of I/O operations per second over the entire data collection on the disk array ports. X-Axis represents Date-Time, Y-Axis represents IOPs on ports. Average: %PortIopsAvg%, peak: %PortIopsMax%.
Total I/O Rate by hour of day. X-Axis represents Date-Time, Y-Axis represents IOPs on ports.
%LunTable%
Top Ten table of the LUNs with the highest IO rate.
Transfer rate over the entire data collection on the disk array ports. X-Axis represents Date-Time, Y-Axis represents transfer rate on ports [MB/s].
Average: %PortMBsAvg%, peak: %PortMBsMax%.
Total transfer rate by hour of day. X-Axis represents Date-Time, Y-Axis represents transfer rate on ports [MB/s].
The Read Block Size histogram provide insight into the distribution of Read IO requests size. X-Axis represents latency, Y-Axis represents Read IO size rate [%].
The Write Block Size histogram provide insight into the distribution of Write IO requests size. X-Axis represents latency, Y-Axis represents Write IO size rate [%].
Read/Write ratio shows the ratio of read activity to write activity over the entire data collection. X-Axis represents Date-Time, Y-Axis represents Read/Write ratio [%].
Random/Sequential ratio shows the ratio of Random IOPs and Sequential IOPs over the entire data collection. X-Axis represents Date-Time, Y-Axis represents Read/Write ratio [%].
Average Read/Write ratio and Random/Sequential ratio.
Utilization of the physical disks over the entire data collection. X-Axis represents Date-Time, Y-Axis represents drive utilization [%]. Average: %PGUtilAvg%, peak: %PGUtilMax%.
Utilization of physical disks over the Parity Groups. X-Axis represents Parity Groups, Y-Axis represents drive utilization [%].
Utilization of the Storage procesors over the entire data collection. X-Axis represents Date-Time, Y-Axis represents CPU utilization [%]. Average: %ProcUtilAvg%. peaks: %ProcUtilMax%.
Utilization of Storage procesors over the cores. X-Axis represents Cores, Y-Axis represents Cores utilization [%]
The write pending rate indicates the quantity of cache alocated by write operations. X-Axis represents Date-Time, Y-Axis represents Wite pending rate [%].
Average: %WritePendingAvg%, peaks: %WritePendingMax%.
This metrics is critical for the latency: <33% Normal value, >33% Hosts priority is decreased, >70% Host are paused until cache destage.
The number of total read and write I/O operations per second over the entire data
collection period. Total Back-end I/O may be compared to Total I/O and the difference is due to the effects
of the array cache according to RAID type. X-Axis represents Date-Time, Y-Axis represents FE-BE IOPs.


Upgrading from 0.x to 2.x
Upgrading from an older version of Jekyll? A few things have changed in 1.0 and 2.0 that you’ll want to know about.
Before we dive in, go ahead and fetch the latest version of Jekyll:
gem update jekyll
Diving in
Want to get a new Jekyll site up and running quickly? Simply
run jekyll new SITENAME
to create a new folder with a bare bones
Jekyll site.
The Jekyll Command
For better clarity, Jekyll now accepts the commands build
and serve
.
Whereas before you might simply run the command jekyll
to generate a site
and jekyll --server
to view it locally, in v2.0 (and later) you should
use the subcommands jekyll build
and jekyll serve
to build and preview
your site.
Watching and Serving
With the new subcommands, the way sites are previewed locally
changed a bit. Instead of specifying server: true
in the site’s
configuration file, use jekyll serve
. The same holds true for
watch: true
. Instead, use the --watch
flag with either jekyll serve
or jekyll build
.
Absolute Permalinks
In Jekyll v1.0, we introduced absolute permalinks for pages in subdirectories. Starting with v2.0, absolute permalinks are opt-out, meaning Jekyll will default to using absolute permalinks instead of relative permalinks. Relative permalink backwards-compatibility was removed in v3.0.
Absolute permalinks will be required in v3.0 and on
Starting with Jekyll v3.0, relative permalinks functionality will be removed and thus unavailable for use.
Draft Posts
Jekyll now lets you write draft posts, and allows you to easily preview how
they will look prior to publishing. To start a draft, simply create a folder
called _drafts
in your site’s source directory (e.g., alongside _posts
),
and add a new markdown file to it. To preview your new post, simply run the
jekyll serve
command with the --drafts
flag.
Drafts don’t have dates
Unlike posts, drafts don’t have a date, since they haven’t
been published yet. Rather than naming your draft something like
2013-07-01-my-draft-post.md
, simply name the file what you’d like your
post to eventually be titled, here my-draft-post.md
.
Custom Config File
Rather than passing individual flags via the command line, you can now pass
an entire custom Jekyll config file. This helps to distinguish between
environments, or lets you programmatically override user-specified
defaults. Simply add the --config
flag to the jekyll
command, followed
by the path to one or more config files (comma-delimited, no spaces).
As a result, the following command line flags are now deprecated:
--no-server
--no-auto
(now--no-watch
)--auto
(now--watch
)--server
--url=
--maruku
,--rdiscount
, and--redcarpet
--pygments
--permalink=
--paginate
The config flag explicitly specifies your configuration file(s)
If you use the --config
flag, Jekyll will ignore your
_config.yml
file. Want to merge a custom configuration with the normal
configuration? No problem. Jekyll will accept more than one custom config
file via the command line. Config files cascade from right to left, such
that if I run jekyll serve --config _config.yml,_config-dev.yml
,
the values in the config files on the right (_config-dev.yml
) overwrite
those on the left (_config.yml
) when both contain the same key.
New Config File Options
Jekyll 1.0 introduced several new config file options. Before you upgrade, you should check to see if any of these are present in your pre-1.0 config file, and if so, make sure that you’re using them properly:
excerpt_separator
host
include
keep_files
layouts
show_drafts
timezone
url
Baseurl
Often, you’ll want the ability to run a Jekyll site in multiple places,
such as previewing locally before pushing to GitHub Pages. Jekyll 1.0 makes
that easier with the new --baseurl
flag. To take advantage of this
feature, first add the production baseurl
to your site’s _config.yml
file. Then, throughout the site, simply prefix relative URLs
with {{ site.baseurl }}
.
When you’re ready to preview your site locally, pass along the --baseurl
flag with your local baseurl (most likely /
) to jekyll serve
and Jekyll
will swap in whatever you’ve passed along, ensuring all your links work as
you’d expect in both environments.
All page and post URLs contain leading slashes
If you use the method described above, please remember
that the URLs for all posts and pages contain a leading slash. Therefore,
concatenating the site baseurl and the post/page url where
site.baseurl = /
and post.url = /2013/06/05/my-fun-post/
will
result in two leading slashes, which will break links. It is thus
suggested that prefixing with site.baseurl
only be used when the
baseurl
is something other than the default of /
.


Uber partly to blame for driverless car death, says US watchdog
by Stefan BosciaUber’s safety policies have been deemed as partly to blame for the death of a woman last year, according to America’s safety watchdog.
Elaine Herzberg was killed in Arizona last year, after she was hit by a driverless Uber car.
Read more: Uber launches new safety measures in attempt to secure long-term London licence
The National Transportation Safety Board (NTSB) ruled last night that the “probable cause” of the incident was inattention of the safety driver, however Uber’s “inadequate” safety culture was also deemed as a contributing factor.
It comes after Transport for London (TfL) refused to grant the Silicon Valley giant a long-term licence in September over fears about passenger safety.
Herzberg, 49, was killed when the car’s safety driver Rafaela Vasquez was looking at her phone and the autonomous technology failed to register her as a pedestrian.
Uber was criticised by safety board chair Robert Sumwalt for not having systems in place to oversee safety driver actions and for not monitoring how many hours they had logged.
The company had also switched off the Volvo’s advanced braking system prior to the incident.
“The inappropriate actions of both the automatic driving system as implemented and the vehicle’s human operator were symptoms of a deeper problem – the ineffective safety culture that existed at the time of Uber Advanced Technologies Group (ATG),” Sumwalt said.
The NTSB did applaud Uber for improving its attitude to safety since the incident and issued a recommendation to continue to implement its current systems.
Nat Beuse, Uber ATG head of safety said: “We deeply regret the March 2018 crash that resulted in the loss of Elaine Herzberg’s life, and we remain committed to improving the safety of our self-driving program.
“Over the last 20 months, we have provided the NTSB with complete access to information about our technology and the developments we have made since the crash.”
Uber’s wider push to improve safety standards was spearheaded in London by UK general manager Jamie Heywood.
Heywood was brought in 18 months ago to improve safety standards, after Uber’s licence was revoked by TfL.
Read more: Uber shares hit a record low
The app’s current short-term licence runs out next week, however a senior Uber employee told City A.M. the company was “confident” it would have its licence renewed.
“I’m confident the licence will be renewed for longer than two months,” they said.


|
aecSpace
0.7
Toolkit for creating architectural spaces.
|
Public Member Functions | |
| def | __init__ |
| def | address (self) |
| def | address |
| def | area (self) |
| def | axis_major (self) |
| def | axis_minor (self) |
| def | axis_x (self) |
| def | axis_y (self) |
| def | boundary (self) |
| def | boundary |
| def | box (self) |
| def | center_ceiling (self) |
| def | center_floor (self) |
| def | center_space (self) |
| def | centroid_ceiling (self) |
| def | centroid_floor (self) |
| def | centroid_space (self) |
| def | circumference (self) |
| def | color (self) |
| def | color |
| def | color_alpha (self) |
| def | color_alpha |
| def | copy_properties (self) |
| def | convex (self) |
| def | elevation (self) |
| def | height (self) |
| def | height |
| def | ID (self) |
| def | level (self) |
| def | level |
| def | mesh (self) |
| def | mesh_ceiling (self) |
| def | mesh_floor (self) |
| def | mesh_graphic (self) |
| def | mesh_sides (self) |
| def | name (self) |
| def | name |
| def | normal_ceiling (self) |
| def | normal_floor (self) |
| def | normal_sides (self) |
| def | point_ceiling (self) |
| def | origin_ceiling (self) |
| def | origin_floor (self) |
| def | point_floor (self) |
| def | points_box (self) |
| def | points_ceiling (self) |
| def | points_floor (self) |
| def | points_sides (self) |
| def | size_x (self) |
| def | size_y (self) |
| def | volume (self) |
| def | add |
| def | compassLine |
| def | compassPoint |
| def | containsPoint |
| def | containsShape |
| def | enclosesPoint |
| def | enclosesSpace |
| def | fitWithin |
| def | mirror |
| def | moveBy |
| def | moveTo |
| def | rotate |
| def | scale |
| def | wrap |
class aecSpace Defines the geometric enclosure of a region described by an anticlockwise list of 2D points, a level in relation to the zero plane, and a positive height in relation to the level. Current assumptions and limitations: * The XY plane is considered horizontal, the Z dimension vertical. * aecSpaces are prisms with lower boundaries parallel to the ground plane with only vertical boundaries. * Curved boundaries must be represented as a series of straight segments.
| def aecSpace.aecSpace.aecSpace.address | ( | self, | |
| Tuple, | |||
| int, | |||
| int, | |||
| int | |||
| ) |
Property Returns a 3-integer xyz address designed for use when the space is employed as a voxel in a grid. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.area | ( | self, | |
| float | |||
| ) |
Property Returns the area of the boundary. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.axis_major | ( | self, | |
| List, | |||
| aecPoint | |||
| ) |
Property Returns the longer of the two orthogonal bounding box axes as two endpoints. If both axes are the same length, returns the x-axis endpoints. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.axis_minor | ( | self, | |
| List, | |||
| aecPoint | |||
| ) |
Property Returns the shorter of the two orthogonal bounding box axes as two endpoints. If both axes are the same length, returns the y-axis endpoints. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.axis_x | ( | self, | |
| List, | |||
| aecPoint | |||
| ) |
Property Returns the central x-axis of the bounding box as two endpoints. Rerurns None on failure.
| def aecSpace.aecSpace.aecSpace.axis_y | ( | self, | |
| List, | |||
| aecPoint | |||
| ) |
Property Returns the central y-axis of the bounding box as two endpoints. Rerurns None on failure.
| def aecSpace.aecSpace.aecSpace.boundary | ( | self, | |
| shapely, | |||
| Polygon | |||
| ) |
Property Returns a polygon representating the boundary. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.box | ( | self, | |
| shapely, | |||
| Polygon | |||
| ) |
Property Returns a polygon of the boundary's bounding box. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.center_ceiling | ( | self, | |
| aecPoint | |||
| ) |
Property Returns the center of the ceiling bounding box. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.center_floor | ( | self, | |
| aecPoint | |||
| ) |
Property Returns the center of the floor bounding box. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.center_space | ( | self, | |
| aecPoint | |||
| ) |
Property Returns the center of the space determined as the halfway point between the ceiling and floor centers.
| def aecSpace.aecSpace.aecSpace.centroid_ceiling | ( | self, | |
| aecPoint | |||
| ) |
Property Returns the centroid of the ceiling boundary. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.centroid_floor | ( | self, | |
| aecPoint | |||
| ) |
Property Returns the centroid of the floor boundary. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.centroid_space | ( | self, | |
| aecPoint | |||
| ) |
Property Returns the centroid of the space as the midpoint between the floor and ceiling centroids. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.circumference | ( | self, | |
| float | |||
| ) |
Property Returns the length of the boundary. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.color | ( | self, | |
| aecColor | |||
| ) |
Property Returns the color. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.color_alpha | ( | self, | |
| int | |||
| ) |
Property Returns the alpha as an integer between 0 and 255. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.convex | ( | self, | |
| bool | |||
| ) |
Property Returns the convex state of the boundary. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.copy_properties | ( | self, | |
| dict | |||
| ) |
Property Returns a dictionary with properties necessary to make a copy of this space.
| def aecSpace.aecSpace.aecSpace.elevation | ( | self, | |
| float | |||
| ) |
Property Returns the z coordinate of the ceiling. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.height | ( | self, | |
| float | |||
| ) |
Property Returns the height. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.ID | ( | self, | |
| str | |||
| ) |
Property Returns the UUID.
| def aecSpace.aecSpace.aecSpace.level | ( | self, | |
| float | |||
| ) |
Property Returns the level of the boundary. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.mesh | ( | self, | |
| aecGeometry, | |||
| mesh3D | |||
| ) |
Property Returns a mesh of the space including vertices, indices, and surface normals. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.mesh_ceiling | ( | self, | |
| aecGeometry, | |||
| mesh3D | |||
| ) |
Property Returns a Delaunay mesh of points and indices. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.mesh_floor | ( | self, | |
| aecGeometry, | |||
| mesh3D | |||
| ) |
Property Returns a Delaunay mesh of points and indices. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.mesh_graphic | ( | self, | |
| aecGeometry, | |||
| mesh3Dgraphic | |||
| ) |
Property Returns a mesh of the space as sequences of floats of 3D vertices, indices, and surface normals. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.mesh_sides | ( | self, | |
| List, | |||
| aecGeometry, | |||
| mesh2D | |||
| ) |
Property Returns a series of meshes of the space sides. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.name | ( | self, | |
| str | |||
| ) |
Property Returns the name. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.normal_ceiling | ( | self, | |
| Tuple, | |||
| float, | |||
| float, | |||
| float | |||
| ) |
Property Returns the level of the boundary. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.normal_floor | ( | self, | |
| Tuple, | |||
| float, | |||
| float, | |||
| float | |||
| ) |
Property Returns the level of the boundary. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.normal_sides | ( | self, | |
| List, | |||
| Tuple, | |||
| float, | |||
| float, | |||
| float | |||
| ) |
Property Returns the list of surface normals from each side. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.origin_ceiling | ( | self, | |
| aecPoint | |||
| ) |
Property Returns the first point in the boundary sequence at the ceiling level. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.origin_floor | ( | self, | |
| aecPoint | |||
| ) |
Property Returns the first point in the boundary sequence at the floor level. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.point_ceiling | ( | self, | |
| aecPoint | |||
| ) |
Property Returns a random point within the space boundary at the ceiling level. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.point_floor | ( | self, | |
| aecPoint | |||
| ) |
Property Returns a random point within the space boundary at the floor level. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.points_box | ( | self, | |
| aecGeometry, | |||
| quad_points | |||
| ) |
Property Returns the anticlockwise points defining the corners of the bounding box at the boundary's level. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.points_ceiling | ( | self, | |
| List, | |||
| aecPoint | |||
| ) |
Property Returns the anticlockwise points defining the ceiling boundary. Returns None on failure
| def aecSpace.aecSpace.aecSpace.points_floor | ( | self, | |
| List, | |||
| aecPoint | |||
| ) |
Property Returns the anticlockwise points defining the floor boundary. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.points_sides | ( | self, | |
| List, | |||
| List, | |||
| aecPoint | |||
| ) |
Property Returns a list of lists of four points defining each side. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.size_x | ( | self, | |
| float | |||
| ) |
Property Returns the x-axis size of the bounding box. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.size_y | ( | self, | |
| float | |||
| ) |
Property Returns the y-axis size of the bounding box. Returns None on failure.
| def aecSpace.aecSpace.aecSpace.volume | ( | self, | |
| float | |||
| ) |
Property Returns the volume. Returns None on failure.


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Codementor | Senior Front-end & Back-end Engineers | contract | remote
Codementor (https://www.codementor.io) is a live help platform connecting developers to experts via screen sharing, video and chat. We have over 4000+ vetted expert developers, including book authors, top Stack Overflow answerers, popular open source contributors, and engineers at top tech companies.
Codementor is more than just mentoring. We also have a new platform where we connect top freelance developers to interesting remote opportunities.
We’re currently looking for more remote developers for client projects on our platform in the following areas:
- React / Redux - AngularJS - JavaScript - Ionic - Android - Python - Ruby on Rails - Node.js - Objective-C - iOS Swift - Ember.js - and more
This is a remote opportunity. We’re looking for both full-time & part-time contractors.
To apply please visit: http://bit.ly/2dCeDos


Experience building apps in Node.js, React Native, Java, Python, and Go. Well-rounded in both front-end and back-end development. Deployed apps using AWS, Elastic Beanstalk, and Docker. Big data management using Hadoop, Apache Hive, and Elasticsearch. Won MeteorHack for building a real-time collaborative Markdown editor. Studying Computer Science at the University of Waterloo.
Designed and developed pipeline solutions for handling large streams of data using Hadoop data clusters and Apache Hive, along with data visualizations dashboards created in Kibana, Logstash, and Elasticsearch. Other technoligies used in the process include Java, Python, Android, C++, and Scala.
Created an application for managing people, groups, and rooms. Application developed using React, Redux, and Flask, along with front-end tools such as Webpack, Babel, CSS Modules, and SASS. Also worked on the exam management platform, using Python and Postgres, in addition to generating reports on course evaluations using Python and SQLite.
Created native apps for Android and iOS to monitor temperatures via BlueTooth for items during line-checks. Developed using React Native, written in JavaScript, along with native code in Java and Objective-C. Also developed web application and API using a technology stack of React, Node, Maria, Redis, and RabbitMq.
Developed an application to file health insurance claims digitally, along with seamless integrations with online e-commerce platforms. Web applications developed using Go, Python, Bootstrap, Angular. Deployment using Amazon Web Service, Elastic Beanstalk, Vagrant, and Docker.
Relevant courses: Security (458), Networks (456), Operating Systems (350), User Interfaces (349), Compilers (241)
I'm a huge anime fan. I've seen over 120+ animes from shonen to shoujo, 90s to current. My top 5 favs are Gintama, Clannad, One Piece, Kimi ni Todoke, and Hunter x Hunter.
Also a fan of Pokemon. I've been playing since RBY and am currently an active Go player. My top 5 fav Pokemon are Charizard, Ninetales, Dragonite, Mew, and Ho-oh.
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[gecode-users] Supporting GECODE for GMP
Christian Schulte
cschulte at kth.se
Sun Jun 3 17:09:07 CEST 2012
No, not really. Even though it would be very simple, just following the
design of variables with bounds only shown in Part V of MPG.
Christian
--
Christian Schulte, www.ict.kth.se/~cschulte/
> -----Original Message-----
> From: users-bounces at gecode.org [mailto:users-bounces at gecode.org] On
> Behalf Of Nikhil Barthwal
> Sent: Friday, June 01, 2012 9:47 PM
> To: users at gecode.org
> Subject: [gecode-users] Supporting GECODE for GMP
>
> Hi,
>
> Is there any plan in near future to add support arbitary precision
arithmetic
> (using GNU GMP or some other library)?
>
> Please let me know!
>
> Thank you,
>
> Nikhil
>
>
>
> =-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> Nikhil Barthwal
> PhD Student, Deptt. of Systems & Computer Engg.,
> Carleton University, Ottawa CANADA
> =-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>
>
> _______________________________________________
> Gecode users mailing list
> users at gecode.org
> https://www.gecode.org/mailman/listinfo/gecode-users
More information about the users
mailing list


The Natural Language Classifier is designed to predict the best predefined classes for short strings of text. It is limited only by the amount and type of training data that you provide.
Additionally, you can use the service for different types of content, such as:


|
Classes |
| class | Rank |
| | Rank information. More...
|
| class | MaxInc |
| | Sort-order by increasing maximum. More...
|
| class | MinInc |
| | Sort-order by increasing minimum. More...
|
| class | HallInfo |
| | Information on Hall intervals. More...
|
| class | CombPtrFlag |
| | Class for combining two pointers with a flag. More...
|
| class | BiLink |
| | Bidirectional links for both edges and anchors in nodes of view-value graph. More...
|
| class | Node |
| | Base-class for nodes (both view and value nodes). More...
|
| class | ValNode |
| | Value nodes in view-value graph. More...
|
| class | ViewNode |
| | View nodes in view-value graph. More...
|
| class | Edge |
| | Edges in view-value graph. More...
|
| class | Val |
| | Naive value distinct propagator. More...
|
| class | Bnd |
| | Bounds-consistent distinct propagator. More...
|
| class | DomCtrl |
| | Propagation controller for domain-consistent distinct. More...
|
| class | Dom |
| | Domain-consistent distinct propagator. More...
|
| class | TerDom |
| | Ternary domain-consistent distinct propagator. More...
|
Functions |
| void | pathset_t (HallInfo hall[], int start, int end, int to) |
| void | pathset_h (HallInfo hall[], int start, int end, int to) |
| int | pathmin_h (const HallInfo hall[], int i) |
| int | pathmin_t (const HallInfo hall[], int i) |
| int | pathmax_h (const HallInfo hall[], int i) |
| int | pathmax_t (const HallInfo hall[], int i) |
| template<class View> |
| ExecStatus | prop_bnd (Space *home, ViewArray< View > &x, int m) |
| | Perform bounds-consistent distinct propagation.
|
| template<class View, bool complete> |
| ExecStatus | prop_val (Space *home, ViewArray< View > &) |
| | Eliminate singletons by naive value propagation.
|


⥊
)⥊ 𝕩
: DeshapePut all elements of 𝕩
in a rank 1 array, promoting to an array if necessary.
⥊ 1 ⟨ 1 ⟩ ⥊ 1‿2 ≍ 3‿4 ⟨ 1 2 3 4 ⟩
𝕨 ⥊ 𝕩
: ReshapePut all elements of 𝕩
in an array of shape 𝕨
, removing elements or repeating them cyclically if necessary.
A single element in 𝕨
can be a function, which will be replaced with an appropriate length:
∘
Exact fit⌊
Round length down, discarding elements⌽
Round length up↑
Round length up, and use element fill to add extra elements.3‿3 ⥊ 3 ┌─ ╵ 3 3 3 3 3 3 3 3 3 ┘ 2‿⌽‿2 ⥊ 1‿2‿3 ┌─ ╎ 1 2 3 1 ┘ 2‿↑‿2 ⥊ 1‿2‿3 ┌─ ╎ 1 2 3 0 ┘


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|
TerrainRenderer
1.0.0
|
this representate Renderer itself. provide only initialization method and input method to public. More...
#include "GLApp.hpp"
#include "EngineGUI.hpp"
#include <memory>
#include "EngineTerrain.hpp"
#include "EngineCamera.hpp"
#include "EngineCubeMap.hpp"
#include "EngineWater.hpp"
#include "TextureViewer.hpp"
#include "LightSourceWrapper.hpp"
#include "Godrays.hpp"
#include "PostProcessing.hpp"
Go to the source code of this file.
Classes | |
| class | EngineApp |
this representate Renderer itself. provide only initialization method and input method to public.


Not a mental depression, but a depression in regards to personal development.
I define personal development as doing things that you enjoy working on in your free time. Not just anything, but things you actively work on to get better at without any external motivation to do so.
Recently I’ve spent all of my time working on my day job instead of taking the time to do any personal development. Things like reading, writing, or working on personal side projects that don’t make any money :).
By spending all of my time working, I’m actually getting worse at work. And I’m not getting any better at my personal interests. Doubly bad.
It’s easy to get sucked into work. They pay you. Projects are handed to you. You feel productive when you work on something. You know what you have to deliver. Strategy and goals are set for you – you just have to execute. Things are relatively straightforward.
Too often these factors lead people to spend all of time working. With non-stop work emails as the new norm and every email marked as URGENT!!!, it’s easy to feel like it’s irresponsible to do anything other than work.
The problem with constant working is that while you might feel like you’re being productive, you’re only making incremental improvements. By constantly working on the same thing – you close your mind and limit your ability to think and grow.
“Most innovation comes from outside of the company.”
-Tony Hsieh, CEO of Zappos
“What we know about the brain is that the brain does not work on forming its connections while we are focused on the idea.”
-Debra Kaye, Founder of Lucule Consulting
In order to innovate and make real strides in your career/ life, it’s essential to lift yourself out of the day to day tactical work and just do other things. Finish a book, write a blog post, volunteer, or work on a side project. Get out of the building.
By spending time applying your mind to other problems, you can learn and draw inspiration from outside. When you are focused on 1 problem, you develop tunnel vision. Your thinking narrows, and your thoughts can get boxed in. When you venture outside and let go, you’re able to re-open your mind and see things in a novel way.
Outside of work, by developing other skills, you simply become a more valuable person. You learn new skill set, open your mind, and become a much more versatile thinker.
As a personal anecdote, I’ve found my best ideas come from moments where my mind is farthest from the problem at hand. If I get stuck on something, I’ll start writing a post or start working on a side project and the answer serendipitously strikes me.
The difficulty for me is finding the right balance. I’m particularly fond of the way Jeff Atwood describes it in his post, Sharpening the Saw.
A guy who stumbled into a lumberjack. The lumberjack is feverishly sawing at a very large tree. The lumberjack was sawing and sawing, yet going nowhere. The saw was about as sharp as a butter knife. So, he says to the lumberjack, “I couldn’t help noticing how hard you are working on that tree, but going nowhere.”
 The bystander replies and says, “But your saw is so dull that it couldn’t possibly cut through anything.” “I know”, says the lumberjack, “but I am too busy sawing to take time to sharpen my saw.”
I’m not sure if the post is meant to be read this way – but to me, working is the tactical action of sawing away at the tree. Personal development is the act of sharpening the saw. In order to maximize your efficiency, you must find a balance between the two.
Constantly re-assess yourself, and be ruthlessly intellectually honest. Spend too much time sawing away and you never make a real impact. Spend too much time sharpening the saw, and you never get anywhere.
So force yourself to take time and do other things. Especially in startup, it can be hard to pry yourself away from all of the critical things happening. But make sure to take time every day or at least every week to let go of work and focus on building your own personal skill set and interests. You will end up serving not only your company, but also yourself much better in the long run.
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- Writing
- Standing Desk


Unroll their fire. Oh, oh Marty, here's you keys.  Biff, stop it. Biff, you're breaking his arm. Biff, stop. The future, it's where you're going?   Lorraine, if you ever have a kid like that, I'll disown you. You know Marty, you look so familiar, do I know your mother? Oh, if Paul calls me tell him I'm working at the boutique late tonight. I will. No no no, Doc, I just got here, okay, Jennifer's here, we're gonna take the new truck for a spin.
Doc, she didn't even look at him.
Now that's a risk you'll have to take you're life depends on it.
I'm gonna ram him.


HARI NAYAK
Hari Nayak is an Indian cook, restaurateur, creator and an Indian among top 10 chefs in India. He is also a culinary teacher. He is the author of "Present day Indian Cooking". He spent the first twenty years of his career as a chef working for restaurants in New York City Cooking specialist Hari Nayak has led the coming era of Indian Cooking with his most recent cookbook with Chef Daniel Bolud.
Birthday: February 8, 1974 | Place of Birth: Udupi, India | Hometown: Udupi, India
School/College: Culinary Institute of America| First Job: Halo Fete, New Jersey
Hari additionally led America’s first frozen yogurt patisserie, Halo Fete situated in Princeton, New Jersey.Restaurants that Nayak has worked as an executive founder for have included Alchemy in Bangalore; the Tandur Indian Kitchen chain of restaurants in Tennessee and South Carolina;the restaurants Masti and Bombay Bungalow in Dubai; Charcoza in Riyadh; and he has been the Culinary Director for Café Spice in New York City. He also runs a website that features his work and recipes, and has appeared on Food Network shows like Beat Bobby Flay as a judge.


At the start of the Autumn semester, students will attend a one-day workshop (7 hours) on secondary school teaching led by a lecturer in the Division of Education.
Students will attend two observation sessions/tutorials (4 hours) in schools in the Autumn semester, with an opportunity to discuss with the class teacher about communication, lesson planning and handling difficult situations.
Tutorials with the module leader will take place in the university at regular intervals (6 hours). These will provide an opportunity to reflect on students' experience in the school, review the plan for special project, share good practice and identify any difficulties that have arisen. These tutorials will be held as a group. An additional one-to-one tutorial will be held during an on-site visit to the school by the module leader (1 hour). Where possible, this will be targeted at the middle of the Spring semester so that the student’s progress can be reviewed.
During work placements in schools in the Spring semester, students will work closely with a specific teacher who will help to develop the student’s role in the classroom. Initially the student will act as a classroom assistant; later, towards the end of the placement, the student will usually lead at least one teaching session (but the teacher will always be present). Students may also be involved in activities outside of formal classes, such as a computer club.
Every student will undertake a special project. The choice of the project will be made following discussion with the teacher and with the module tutor. It will be targeted, where possible, at a specific concept or activity for which there is a perceived need in the school. The project may be a novel method of presentation appropriate to the topic, a particular demonstration, or a pupil activity, and is likely to involve the preparation of specific materials by the student.
Students will be interviewed for a place on the module prior to the summer break. Successful students will then be DBS checked over the summer and paired with a school (and a specific teacher in that school). Hence, in week 1 of the Autumn semester students will know which school they are working with, and the age group they will be teaching. |


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South African Airways and unions resume strike talks
South Africa’s flag carrier on Tuesday resumed talks with unions in a bid to break a five-day strike that has forced the cancellation of flights, the airline said.
Thousands of South African Airways (SAA) staff began an indefinite strike on Friday after the cash-strapped airline failed to meet a litany of demands, including higher wages and job in-sourcing.
The strike grounded hundreds of flights, but by Tuesday the airline had resumed partial schedules as some of the 3,000 striking workers had started returning to work.
South Africa’s Public Enterprises Minister Pravin Gordhan attended the latest round of talks on Tuesday — the first time the government was involved since the strike started.
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“This afternoon we will again be meeting the unions to try and find common ground,” chairwoman of the SAA board Thandeka Mgoduso told reporters at a press conference.
“We are trying everything that we can to resolve the current impasse,” she added.
Mgoduso said the talks had so far been cordial.
SAA CEO Zuks Ramasia said the unions had introduced new demands that were not part of the original requests.
“The company has decided to approach the labour court on an urgent basis to interdict these demands,” Ramasia said.
“We are open to communicate, we want to talk,” she added.
The debt-ridden SAA, which has failed to make a profit since 2011 and survives off government bailouts, had initially refused to increase salaries.
It then caved and offered a 5.9 percent pay rise starting April next year.
But unions are demanding an eight percent hike and a three-year guarantee of job security.
Threats to strike started after SAA said last week that almost 1,000 employees could lose their jobs as part of a restructuring process.
The airline has said it cannot afford the desired increases.
SAA is Africa’s second largest airline after Ethiopian Airlines.
It flies to more than more 35 domestic and international destinations, carrying millions of passengers each year.
South Africa is struggling to get its state-owned companies back on track after nine years of corruption and mismanagement under former president Jacob Zuma. AFP


--- layout: post --- {% for post in site.posts %} {{ post.title }} {{ post.content | truncate: 200 }}


| Style-class {diffobj} | R Documentation |
S4 objects that expose the formatting controls for Diff
objects. Many predefined formats are defined as classes that extend the
base Style
class. You may fine tune styles by either extending
the pre-defined classes, or modifying an instance thereof.
funs |
a |
text |
a |
summary |
a |
pad |
TRUE or FALSE, whether text should be right padded |
pager |
what type of |
nchar.fun |
function to use to count characters; intended mostly for internal use (used only for gutters as of version 0.2.0). |
wrap |
TRUE or FALSE, whether text should be hard wrapped at
|
na.sub |
what character value to substitute for NA elements; NA elements are generated when lining up side by side diffs by adding padding rows; by default the text styles replace these with a blank character string, and the HTML styles leave them as NA for the HTML formatting functions to deal with |
blank |
sub what character value to replace blanks with; needed in
particular for HTML rendering (uses |
disp.width |
how many columns the text representation of the objects to
diff is allowed to take up before it is hard wrapped (assuming |
finalizer |
function that accepts at least two parameters and requires
no more than two parameters, will receive as the first parameter the
the object to render (either a |
html.output |
(
|
escape.html.entities |
( |
scale |
( |
css |
( |
js |
( |
Style S4 object
Pre-defined classes are used to populate the PaletteOfStyles
object, which in turn allows the diff*
methods to pick the
appropriate Style
for each combination of the format
,
color.mode
, and brightness
parameters when the style
parameter is set to “auto”. The following classes are pre-defined:
StyleRaw
: No styles applied
StyleAnsi8NeutralRgb
StyleAnsi8NeutralYb
StyleAnsi256LightRgb
StyleAnsi256LightYb
StyleAnsi256DarkRgb
StyleAnsi256DarkYb
StyleHtmlLightRgb
StyleHtmlLightYb
Each of these classes has an associated constructor function with the
same name (see examples). Objects instantiated from these classes
may also be used directly as the value for the style
parameter to the
diff*
methods. This will override the automatic selection process
that uses PaletteOfStyles
. If you wish to tweak an
auto-selected style rather than explicitly specify one, pass a parameter
list instead of a Style
objects as the style
parameter to the
diff*
methods (see examples).
There are predefined classes for most combinations of
format/color.mode/brightness
, but not all. For example, there are
only “light” brightness
defined for the “html”
format
, and those classes are re-used for all possible
brightness
values, and the 8 color ANSI neutral classes are used
for the 256 color neutral selections as well.
To get a preview of what a style looks like just instantiate
an object; the show
method will output a trivial diff to screen with
styles applied. Note that for ANSI styles of the dark and light variety
the show method colors the terminal background and foregrounds in compatible
colors. In normal usage the terminal background and foreground colors are
left untouched so you should not expect light styles to look good on dark
background and vice versa even if they render correctly when showing the
style object.
Most of the customization is done by specifying functions that operate on
character vectors and return a modified character vector of the same length.
The intended use case is to pass crayon
functions such as
crayon::red
, although you may pass any function of your liking
that behaves as described. Formatting functions are expected to return their
inputs formatted in such a way that their display width is unchanged.
If your formatting functions change display width output may not render
properly, particularly when using mode="sidebyside"
.
The visual representation of the diff has many nested components. The functions you specify here will be applied starting with the innermost ones. A schematic of the various component that represent an inserted line follows (note “insert” abbreviated to “ins”, and “gutter” abbreviated to “gtr”):
+- line ---------------------------------------------------+ |+- line.ins ---------------------------------------------+| ||+- gtr ------------------------++- text ---------------+|| |||+- gtr.ins ---++- gtr.pad ---+||+- text.ins ---------+||| |||| || |||| +- word.ins -+|||| |||| gtr.ins.txt || gtr.pad.txt |||| DIFF | TEXT HERE ||||| |||| || |||| +------------+|||| |||+-------------++-------------+||+--------------------+||| ||+------------------------------++----------------------+|| |+--------------------------------------------------------+| +----------------------------------------------------------+
A similar model applies to deleted and matching lines. The boxes represent
functions. gutter.insert.txt
represents the text to use in the gutter
and is not a function. DIFF TEXT HERE
is text from the objects being
diffed, with the portion that has different words inside the
word.insert
. gutter.pad
and gutter.pad.txt
are used to
separate the gutter from the text and usually end up resolving to a space.
Most of the functions defined here default to identity
, but
you are given the flexibility to fully format the diff. See
StyleFuns
and StyleText
for a full listing of
the adjustable elements.
In side-by-side mode there are two “lines” per screen line, each with the structure described here.
The structure described here may change in the future.
If you use a Style
that inherits from StyleHtml
the
diff will be wrapped in HTML tags, styled with CSS, and output to
getOption("viewer")
if your IDE supports it (e.g. Rstudio), or
directly to the browser otherwise, assuming that the default
Pager
or a correctly configured pager that inherits from
PagerBrowser
is in effect. Otherwise, the raw HTML will be
output to your terminal.
By default HTML output sent to the viewer/browser is a full stand-alone
webpage with CSS styles to format and color the diff, and JS code to
handle scaling. The CSS and JS is read from the
default files and injected into the HTML to simplify
packaging of the output. You can customize the CSS and JS by using the
css
and js
arguments respectively, but read the rest of this
documentation section if you plan on doing so.
Should you want to capture the HTML output for use elsewhere, you can do
so by using as.character
on the return value of the diff*
methods. If you want the raw HTML without any of the headers, CSS, and
JS use html.ouput="diff.only"
when you instantiate the
StyleHtml
object (see examples), or disable the Pager
.
Another option is html.output="diff.w.style"
which will add
<style>
tags with the CSS, but without wrapping those in <head>
tags. This last option results in illegal HTML with a <style>
block
outside of the <head>
block, but appears to work and is useful if you
want to embed HTML someplace but do not have access to the headers.
If you wish to modify the CSS styles you should do so cautiously. The
HTML and CSS work well together out of the box, but may not take to kindly
to modifications. The safest changes you can make are to the colors of the
scheme. You also probably should not modify the functions in the
@funs
slot of the StyleHtml
object. If you want to provide
your own custom styles make a copy of the file at the location returned by
diffobj_css()
, modify it to your liking, and pass the location of your
modified sheet back via the css
argument (see examples).
The javascript controls the scaling of the output such that its width fits
in the viewport. If you wish to turn of this behavior you can do so via the
scale
argument. You may need to modify the javascript if you modify
the @funs
functions, but otherwise you are probably best off leaving
the javascript untouched. You can provide the location of a modified
javascript file via the js
argument.
Both the CSS and JS files can be specified via options, “diffobj.html.css”, and “diffobj.html.js” respectively.
If you define your own custom StyleHtml
object you may want to modify
the slot @funs@container
. This slot contains a function that is
applied to the entire diff output. For example, StyleHtmlLightRgb
uses @funs@container <- cont_f("light", "rgb")
. cont_f
returns
a function that accepts a character vector as an argument and returns
that value wrapped in a DIV
block with class
“"diffobj-container light rgb"”. This allows the CSS style sheet to
target the Diff
elements with the correct styles.
Often you will want to specify some of the style parameters (e.g.
scale
for html styles) while still relying on the default style
selection to pick the specific style. You can do so by passing a list to the
style
parameter of the diff*
methods.
See examples.
You can in theory create entirely new classes that extent Style
. For
example you could generate a class that renders the diff in grid
graphics. Note however that we have not tested such extensions and it is
possible there is some embedded code that will misbehave with such a new
class.
## Not run: ## Create a new style based on existing style by changing ## gutter symbols and guide color; see `?StyleFuns` and ## `?StyleText` for a full list of adjustable elements my.style <- StyleAnsi8NeutralYb() my.style ## `show` method gives you a preview of the style my.style<EMAIL_ADDRESS><- "+++" my.style<EMAIL_ADDRESS><- "---" my.style<EMAIL_ADDRESS><- crayon::green my.style ## Notice gutters and guide color ## Provide a custom style sheet; here we assume there is a style sheet at ## `HOME/web/mycss.css` my.css <- file.path(path.expand("~"), "web", "mycss.css") diffPrint(1:5, 2:6, style=StyleHtmlLightYb(css=my.css)) ## Turn of scaling; notice how we pass a list to `style` ## and we do not need to specify a specific style diffPrint(letters, letters[-5], format="html", style=list(scale=FALSE)) ## Alternatively we can do the same by specifying a style, but we must ## give an exact html style instead of relying on preferences to pick ## one for us my.style <- StyleHtmlLightYb(scale=FALSE) diffPrint(letters, letters[-5], style=my.style) ## End(Not run) ## Return only the raw HTML without any of the headers as.character( diffPrint(1:5, 2:6, format="html", style=list(html.output="diff.only")) )


Here you can find the frequently asked questions for 3dviewer.net. If you can't find your answer here, feel free to create an issue on GitHub.
Model loading
No importable file found - what does that mean?
It means that none of your files are importable. Online 3D Viewer tries to detect importable files by extension. Check if your format in the supported file formats list, and make sure that you use the proper extension.
Failed to load file for import - what does that mean?
It means that an importable file format is detected, but the website failed to load the file. It usually happens when you try to load a model from an external url.
To resolve this issue, check if your url works in a browser window.
- If it works, it means that your url is ok, but the website can't access it. Usually it's caused by a CORS (Cross-Origin Resource Sharing) policy violation. It means that the server that hosts the model doesn't allow requests from a different origin. To resolve this issue, allow CORS requests on the server.
- If it doesn't work, it means that your url is wrong. Fix the url.
Failed to import model - what does that mean?
It means that an importable file is found, the import process is started, but failed for some reason. If the error message doesn't help, create an issue on GitHub.
Why does my model works fine locally, but not from an url?
Usually it's caused by a CORS (Cross-Origin Resource Sharing) policy violation. It means that the server that hosts the model doesn't allow requests from a different origin. To resolve this issue, allow CORS requests on the server.
Model display
Why is my model completely gray?
Some file formats are coming with no material information (e.g. stl). These models will be visualized with a default gray color. You can easily change this color in the settings panel () on the right.
Some file formats are coming in multiple files, and material information can be in a separate file (e.g. obj files are usually working with mtl files). Check the files panel for any missing files (), and if you have the file, import it together with the main file.
Model sharing
Why does sharing fail?
Online 3D Viewer doesn't store models, everything happens in your browser. Sharing possible only if your files are coming from an external server. For example you can share a model that is loaded using the open url button ().
When you drag and drop a model, or load it using the open button (), the model is not publicly available, so in this case sharing is not possible.


Implementation of Power Management Controller (PMC). More...
Macros | |
| #define | MASK_STATUS0 0xFFFFFFFC |
| #define | MASK_STATUS1 0xFFFFFFFF |
Functions | |
| static void | _PMC_SwitchMck2PllaClock (void) |
| Switch MCK to PLLA clock. More... | |
| static void | _PMC_SwitchMck2MainClock (void) |
| Switch MCK to main clock. More... | |
| static void | _PMC_SwitchMck2SlowClock (void) |
| Switch MCK to slow clock. More... | |
| static void | _PMC_SetMckPrescaler (uint32_t prescaler) |
| Set prescaler for MCK. More... | |
| void | PMC_EnablePeripheral (uint32_t dwId) |
| Enables the clock of a peripheral. More... | |
| void | PMC_DisablePeripheral (uint32_t dwId) |
| Disables the clock of a peripheral. More... | |
| void | PMC_EnableAllPeripherals (void) |
| Enable all the periph clock via PMC. More... | |
| void | PMC_DisableAllPeripherals (void) |
| Disable all the periph clock via PMC. More... | |
| uint32_t | PMC_IsPeriphEnabled (uint32_t dwId) |
| Get Periph Status for the given peripheral ID. More... | |
| void | PMC_EnableExtOsc (void) |
| Enable external oscillator as main clock input. More... | |
| void | PMC_DisableExtOsc (void) |
| Disable external 12MHz oscillator. More... | |
| void | PMC_SelectExtOsc (void) |
| Select external OSC. More... | |
| void | PMC_SelectExtBypassOsc (void) |
| Select external OSC. More... | |
| void | PMC_EnableIntRC4_8_12MHz (uint32_t freqSelect) |
| Enable internal 4/8/12MHz fast RC as main clock input. More... | |
| void | PMC_DisableIntRC4_8_12MHz (void) |
| Disable internal 4/8/12MHz fast RC. More... | |
| void | PMC_SetPllaClock (uint32_t mul, uint32_t div) |
| Configure PLLA clock by giving MUL and DIV. More... | |
| void | PMC_SetMckSelection (uint32_t clockSource, uint32_t prescaler) |
| Selection of Master Clock. More... | |
| void | PMC_DisableAllClocks (void) |
| Disable all clocks. More... | |
| void | PMC_ConfigureMckWithPlla (uint32_t mul, uint32_t div, uint32_t prescaler) |
| Configure PLLA as clock input for MCK. More... | |
| void | PMC_EnableXT32KFME (void) |
| Configure PLLA as clock input for MCK. More... | |
| void | PMC_ConfigurePCK0 (uint32_t MasterClk, uint32_t prescaler) |
| Configure PLLA as clock input for MCK. More... | |
| void | PMC_ConfigurePCK1 (uint32_t MasterClk, uint32_t prescaler) |
| Configure PLLA as clock input for MCK. More... | |
| void | PMC_ConfigurePCK2 (uint32_t MasterClk, uint32_t prescaler) |
| Configure PLLA as clock input for MCK. More... | |
Implementation of Power Management Controller (PMC).
Interface for configuring and using Power Management Controller (PMC) peripherals.
| #define MASK_STATUS0 0xFFFFFFFC |
| #define MASK_STATUS1 0xFFFFFFFF |
|
static |
Set prescaler for MCK.
| prescaler | Master Clock prescaler |
|
static |
Switch MCK to main clock.
|
static |
Switch MCK to PLLA clock.
|
static |
Switch MCK to slow clock.
| void PMC_ConfigureMckWithPlla | ( | uint32_t | mul, |
| uint32_t | div, | ||
| uint32_t | prescaler | ||
| ) |
Configure PLLA as clock input for MCK.
| mul | PLL multiplier factor (not shifted, don't minus 1). |
| div | PLL divider factor (not shifted). |
| prescaler | Master Clock prescaler (shifted as in register). |
| void PMC_ConfigurePCK0 | ( | uint32_t | MasterClk, |
| uint32_t | prescaler | ||
| ) |
Configure PLLA as clock input for MCK.
| mul | PLL multiplier factor (not shifted, don't minus 1). |
| div | PLL divider factor (not shifted). |
| prescaler | Master Clock prescaler (shifted as in register). |
| void PMC_ConfigurePCK1 | ( | uint32_t | MasterClk, |
| uint32_t | prescaler | ||
| ) |
Configure PLLA as clock input for MCK.
| mul | PLL multiplier factor (not shifted, don't minus 1). |
| div | PLL divider factor (not shifted). |
| prescaler | Master Clock prescaler (shifted as in register). |
| void PMC_ConfigurePCK2 | ( | uint32_t | MasterClk, |
| uint32_t | prescaler | ||
| ) |
Configure PLLA as clock input for MCK.
| mul | PLL multiplier factor (not shifted, don't minus 1). |
| div | PLL divider factor (not shifted). |
| prescaler | Master Clock prescaler (shifted as in register). |
| void PMC_DisableAllClocks | ( | void | ) |
Disable all clocks.
| void PMC_DisableAllPeripherals | ( | void | ) |
Disable all the periph clock via PMC.
| void PMC_DisableExtOsc | ( | void | ) |
Disable external 12MHz oscillator.
| void PMC_DisableIntRC4_8_12MHz | ( | void | ) |
Disable internal 4/8/12MHz fast RC.
| void PMC_DisablePeripheral | ( | uint32_t | dwId | ) |
Disables the clock of a peripheral.
The peripheral ID is used to identify which peripheral is targeted.
| id | Peripheral ID (ID_xxx). |
| void PMC_EnableAllPeripherals | ( | void | ) |
Enable all the periph clock via PMC.
| void PMC_EnableExtOsc | ( | void | ) |
Enable external oscillator as main clock input.
| void PMC_EnableIntRC4_8_12MHz | ( | uint32_t | freqSelect | ) |
Enable internal 4/8/12MHz fast RC as main clock input.
| freqSelect | fast RC frequency (FAST_RC_4MHZ, FAST_RC_8MHZ, FAST_RC_12MHZ). |
| void PMC_EnablePeripheral | ( | uint32_t | dwId | ) |
Enables the clock of a peripheral.
The peripheral ID is used to identify which peripheral is targeted.
| id | Peripheral ID (ID_xxx). |
| void PMC_EnableXT32KFME | ( | void | ) |
Configure PLLA as clock input for MCK.
| mul | PLL multiplier factor (not shifted, don't minus 1). |
| div | PLL divider factor (not shifted). |
| prescaler | Master Clock prescaler (shifted as in register). |
| uint32_t PMC_IsPeriphEnabled | ( | uint32_t | dwId | ) |
Get Periph Status for the given peripheral ID.
| id | Peripheral ID (ID_xxx). |
| void PMC_SelectExtBypassOsc | ( | void | ) |
Select external OSC.
| void PMC_SelectExtOsc | ( | void | ) |
Select external OSC.
| void PMC_SetMckSelection | ( | uint32_t | clockSource, |
| uint32_t | prescaler | ||
| ) |
Selection of Master Clock.
| clockSource | Master Clock source. |
| prescaler | Master Clock prescaler. |
| void PMC_SetPllaClock | ( | uint32_t | mul, |
| uint32_t | div | ||
| ) |
Configure PLLA clock by giving MUL and DIV.
Disable PLLA when 'mul' set to 0.
| mul | PLL multiplier factor. |
| div | PLL divider factor. |


Politico
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African culture has created bold new artforms.
African culture has consistently been the driving force behind a bevy of new artisanal experiences. From Samba to Hip Hop, the emotion of a continent has led the way to new styles
×A rebellion against freedom and fluidity of motion.
Her emphasis on tight, locked motions would prove to be the foundation for many modern styles of hip-hop and electronic-inspired dance. Based on bondage and chains, Martha Graham's movements are reminiscent of slavery and captivity, a nod to African-American heritage.
×Confined by Technology.
Daft Punk satirizes the direction of technology with quick, punchy commands. They tell audiences to "lock" it and "zip" it, showing them the ridiculous tendencies of man towards the subjugation of others.
×The empitome of restrictive dance.
An evolution of the punchy beats displayed by Daft Punk, the Jabbawockeez are a physical, fluid manifestation of the music. They display incredible control over their bodies and their art form. Their movements are precise and clean, without freedom.
×Banksy plays on how technology obstructs our most basic needs.
Technology has infiltrated our lives to such a point where it interferes with our abilities to experience love. It's reached beyond a point where we restrict our dance motions and our beats and into a realm where it's restricted our emotional capacities.
×


Posts authored by {{ author.display_name }}
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{% endif %}{% extends "base.html" %} {% block title %} Blagging -- {{ author.display_name }} {% endblock %} {% block content %}
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--- title: "Microsoft SOA & Business Process Conference" layout: post ---
For those who attended my session on BizTalk Server 2006 R2 and HIPAA Transactions at the Microsoft SOA & Business Process Conference you can download the slides now from this site. Conference attendees will also eventually have access to a recording of the session but that may be weeks in the comings.


The system for servicing and maintaining websites based on static HTML files. It’s focused on smaller sized sites that require periodic updates. All the changes on the site get saved directly on the HTML files, this allows to eliminate the need of having a database server. Does not require any integration with the site, its enough to just fit the catalogue with the system in the root directory of the site. The system automatically scans the structure of the site and provides a convenient access to all the files through the web interface.
The main feature of Textolite is the visual editor with the ability to edit content without any forms of input, only requires a click on the element that is on the site. For more technical and serious changes provided a source code editor with a highlighted syntax and line numbering. Files with the following extensions are also supported html, htm, shtml, shtm, stm, xml, php, js, css. For downloading or deletion of files exists a convenient file manager with the ability to upload multiple files in batches to the server.
Installation
For a normal operation of the system users will need a web server Apache and PHP version 5.2 and above with a current mod_rewrite module. Users must unzip the downloaded archive to the root directory of the site. Must move on to the directory of the system through the address bar of the browser http://{mysite}/textolite/. The directory of the system can be renamed later on. If everything is done properly, the system will display an authorization form. The password is set by default as "admin". After the first login, users must change the password in the settings of the system.
The system needs a permission to record for its own catalogue and for all the files of the site. To prevent problems with displaying symbols that are not Latin, all the editable files should be in utf-8 encoding.
To launch the system under Nginx without Apache, users must configure the server using parameters from the file .htaccess. In this case the .htaccess can be deleted. For a standard installation the following code can be used:
index textolite.php;
if (!-e $request_filename) {rewrite ^/textolite/(.*)$
/textolite/textolite.php?query=$1}
location ~ \.(ini|log)$ {deny all;}


This is ttv1 code (Timm tools, version 1).
This is ttv1 code (Timm tools, version 1).
(just another timm tool)
home | discuss | report bug
Watch over a stream of numbers, incrementally learning their median.
Implemented via nested lists. New numbers are added to lst[i]
and
when it fills up, it posts its median to lst[i+1]
. Wen lst[i+1]
fills up, it posts the medians of its medians to lst[i+2]
. Etc.
When a remedian is queried for the current median, it returns the
median of the last list with any numbers.
This approach is quite space efficient . E.g. four nested lists, each with 64 items, require memory for 4*64 items yet can hold the median of the median of the median of the median of over 17 million numbers.
Example usage:
z=remedian()
for i in range(1000):
z + i
if not i % 100:
print(i, z.median())
Based on The Remedian:A Robust Averaging Method for Large Data Sets. by Peter J. Rousseeuw and Gilbert W. Bassett Jr. Journal of the American Statistical Association March 1990, Vol. 85, No. 409, Theory and Methods
The code remedianeg.py compares this rig to just using Python's built-in sort then reporing the middle number. Assuming lists of length 64 and use of pypy3:
class remedian:
Initialization
def __init__(i,inits=[], k=64): # after some experimentation, 64 works ok
i.all,i.k = [],k
i.more,i._median=None,None
[i + x for x in inits]
When full, push the median of current values to next list, then reset.
def __add__(i,x):
i._median = None
i.all.append(x)
if len(i.all) == i.k:
i.more = i.more or remedian(k=i.k)
i.more + i._medianPrim(i.all)
i.all = [] # reset
If there is a next list, ask its median. Else, work it out locally.
def median(i):
return i.more.median() if i.more else i._medianPrim(i.all)
Primitive: return the median of a list of numbers. Cache this
calculation to avoid repeating a needless call to sort
.
Note that __add__
zaps that cache if ever a new number is added.
def _medianPrim(i,lst):
if i._median is None: # _median is the cache of the prior computation
n = len(lst)
p = q = n//2
if n < 3:
p,q = 0, n-1
else:
lst.sort()
if not n % 2:
q = p -1
i._median = lst[p] if p==q else (lst[p]+lst[q])/2
return i._median
Copyright © 2016 Tim Menzies<EMAIL_ADDRESS>This program is free software. It comes without any warranty, to the extent permitted by applicable law. You can redistribute it and/or modify it under the terms of the Do What The F*ck You Want To Public License, Version 2, as published by Sam Hocevar. See http://www.wtfpl.net for more details.
Share and enjoy.


Greetings, one and all!
Favorite animal: Brine shrimp Red panda Spider monkey
The Cure will be celebrating their 40th anniversary on July 7 in London's Hyde Park.
The concert starts at 20:00 and you'll be able to enjoy the band for at least 2h 30m.


Surpassing the strength of light, Wan controls the side of darkness entitled to seize order over chaos. The 'shadow knight' stage relies on the element of shadowmancy, delivering destruction to all other equivalent forces. Wan can further level up to 'void paladin' automatically once he reaches 8000 rage points during a battle.
Element : shadowmancy
Stage type : basic


Window¶
The window transform performs calculations over sorted groups of data objects. These calculations including ranking, lead/lag analysis, and aggregates such as running sums and averages. Calculated values are written back to the input data stream.
Documentation Overview¶
- TOC
Window Field Definition¶
// A View Specification
{
...
"transform": [
{
// Window Transform
"window": [{
"op": ...,
"field": ...,
"param": ...
"as": ...
}],
"sort": [
{"field": ..., "order": ...}
],
"ignorePeers": ...,
"groupby": [
"..."
],
"frame": [...,...]
}
...
],
...
}
Window Transform Definition¶
liqid template: like ".. altair-object-table::"
{% include table.html props="window,frame,ignorePeers,groupby,sort" source="WindowTransform" %}
Window Transform Field Definition¶
liqid template: like ".. altair-object-table::"
{% include table.html props="op,param,field,as" source="WindowFieldDef" %}
Sort Field Definition¶
liqid template: like ".. altair-object-table::"
{% include table.html props="field,order" source="SortField" %}
Window Only Operation Reference¶
The valid operations include all aggregate operations plus the following window operations.
table_block stub
| Operation | Parameter | Description |
| :----------- | :-------: | :------------|
| row_number | _None_ | Assigns each data object a consecutive row number, starting from 1.|
| rank | _None_ | Assigns a rank order value to each data object in a window, starting from 1. Peer values are assigned the same rank. Subsequent rank scores incorporate the number of prior values. For example, if the first two values tie for rank 1, the third value is assigned rank 3.|
| dense_rank | _None_ | Assigns dense rank order values to each data object in a window, starting from 1. Peer values are assigned the same rank. Subsequent rank scores do not incorporate the number of prior values. For example, if the first two values tie for rank 1, the third value is assigned rank 2.|
| percent_rank | _None_ | Assigns a percentage rank order value to each data object in a window. The percent is calculated as _(rank - 1) / (group_size - 1)_. |
| cume_dist | _None_ | Assigns a cumulative distribution value between 0 and 1 to each data object in a window.|
| ntile | Number | Assigns a quantile (e.g., percentile) value to each data object in a window. Accepts an integer parameter indicating the number of buckets to use (e.g., 100 for percentiles, 5 for quintiles).|
| lag | Number | Assigns a value from the data object that precedes the current object by a specified number of positions. If no such object exists, assigns `null`. Accepts an offset parameter (default `1`) that indicates the number of positions. This operation must have a corresponding entry in the _fields_ parameter array.|
| lead | Number | Assigns a value from the data object that follows the current object by a specified number of positions. If no such object exists, assigns `null`. Accepts an offset parameter (default `1`) that indicates the number of positions. This operation must have a corresponding entry in the _fields_ parameter array.|
| first_value | _None_ | Assigns a value from the first data object in the current sliding window frame. This operation must have a corresponding entry in the _fields_ parameter array.|
| last_value | _None_ | Assigns a value from the last data object in the current sliding window frame. This operation must have a corresponding entry in the _fields_ parameter array.|
| nth_value | Number | Assigns a value from the nth data object in the current sliding window frame. If no such object exists, assigns `null`. Requires a non-negative integer parameter that indicates the offset from the start of the window frame. This operation must have a corresponding entry in the _fields_ parameter array.|
Examples¶
Below are some common use cases for the window transform.
Cumulative Frequency Distribution¶
Here we use the window transform with frame: [null, 0]
to accumulate count in a cumulative frequency distribution plot.
Percent of Total¶
Here we use the window transform to derive the global sum so that we can calculate percentage.
Difference from Mean¶
One example is to show the “exemplar” movies from a movie collection. Here “exemplar” is defined by having a score of 2.5 points higher than the global average.
Another example is to show the “exemplar” movies based on the release year average. Here “exemplar” is defined by having a score 2.5 points higher than the annual average for its release year (instead of the global average).
Rather than filtering the above two examples we can also calculate a residual by deriving the mean using the window transform first.
Rank Chart¶
We can also use rank
operator to calculate ranks over time.
Top K¶
Here we use window transform to derive the total number of students along with the rank of the current student to determine the top K students and display their score.
Cumulative Running Average¶
Here we use window transform to visualize how the average MPG for vehicles have changed over the years.


Leeds Marathon
Leeds ENG
Race Winners
(22 runnings)
11 May
2003
12 May
2002
20 May
2001
14 May
2000
16 May
1999
17 May
1998
18 May
1997
14 Jul
1996
16 Jul
1995
17 Jul
1994
24 Oct
1993
25 Oct
1992
27 Oct
1991
28 Oct
1990
22 Oct
1989
23 Oct
1988
25 Oct
1987
26 Oct
1986
27 Oct
1985
28 Oct
1984
30 Oct
1983
31 Oct
1982
01 Nov
1981
Notes: 1981 was the inaugural year. This race was known as the Trimoco Leeds
Marathon for 1986-1993.
2:24:54
Tomas Abyu (ETH)
3:00:10
Lisa Wilyman (ENG)
2:39:20
Elvis Parsley (ENG)
3:10:19
Denise Dean (ENG)
2:36:21
Henrik Bottger-2
3:01:40
Helen Sly (ENG)
2:41:18
Henrik Bottger (ENG)
3:00:44
Amanda Yorwerth (ENG)
2:23:53
Graham Hill (ENG)
3:00:11
Eleanor Robinson-4
2:28:22
Paul Cadwallader (ENG)
3:02:18
Eleanor Robinson-3
2:34:06
Stephen Thirkell (ENG)
2:56:39
Eleanor Robinson-2
2:23:31
Ieuan Ellis-3
3:00:30
Eleanor Robinson (ENG)
2:24:27
Jonathan Hooper (WAL)
3:15:42
Mary Picksley (ENG)
2:26:22
Ieuan Ellis-2
3:05:37
Gilliam Kennedy (ENG)
2:19:49
Trevor Wilson-2
3:07:41
J Holdsworth (ENG)
---
cancelled due to snow
---
cancelled due to snow
2:27:58
Trevor Wilson (ENG)
3:04:37
Catherine Fiddes (ENG)
2:26:04
Ieuan Ellis (WAL)
2:56:03
Janet Kelly (WAL)
2:26:39
Ian Thompson (ENG)
2:56:19
Linda Harris (ENG)
2:27:04
Terry Bean (ENG)
2:48:36
June Cowper (ENG)
2:25:17
Keith Cluderay (ENG)
3:07:58
C Brown (GBR)
2:23:56
Raymond Maule (ENG)
2:59:29
Kathryn Drake (ENG)
2:23:52
Martyn Hopson (ENG)
2:56:20
S Hall (GBR)
2:26:44
Maxwell Coleby (ENG)
3:16:48
Ann Morse (ENG)
2:27:03
John Turner (ENG)
3:04:30
Pam McFarland (ENG)
--
n/a
---
n/a
2:28:02
Michael Critchley (WAL)
---
n/a
Most Wins (1981/2003)
Men
3
Ieuan Ellis (WAL)
1990,1994,1996
Women
4
Eleanor Robinson (ENG)
1996-99
Prize Money
(ARRS qualified runners)
Year Men Women Total 1996 $775 none $775 .... 1990 975 none 975 Sums $1,750 none $1,750
Race Time Bias
(sec/km)
Insufficient data to calculate the race time bias.
Competitive Level (1990-date)
Insufficient data to calculate the competitive level.
Quality Performances
Men <2:20 1 Women <2:50 1
Last Updated on 27 Aug 2014
Contributor: Mick McGeoch (50)


WAHNSINN
WAHNSINN ®: Your new solution to all life's catastrophies. Any questions? Feel free to contact us on our contact page!


Vehicle crashes into Bean Scene coffee shop in Kelowna
by Parker CrookIt has been a whirlwind of a morning for Jennifer West.
At 4 a.m. Saturday, West received a call from the Kelowna RCMP saying that a vehicle had crashed into her business, Bean Scene Coffee Works North on Ellis Street at around 1:30 a.m.
"It was a little bit nerve-wracking getting woken up by police at 4 a.m. We weren't sure what to expect when police called," West said. "It was kind of a bit overwhelming."
Fast forward a few hours and the windows and door smashed by the vehicle have been boarded up and the coffee shop is open for business.
"It (the vehicle) didn't get all the way in or anything. It smashed the door and the windows," West said.
Insurance companies have been called and West is certain that the damages will be covered.
"Everyone has been just so amazing helping us put it back."
West did not know whether or not an arrest had been made.


PwC Survey
Are your end user complaining about application slowness?
Select
Frequently
Sometimes
Never
Do you face application downtime in buisness hour?
Select
Frequently
Sometimes
Never
Is your IT infrastructure used optimally?
Select
Partially
Yes
No
Do you find difficulty in ROI calculation for future investment due to buisness growth?
Select
Yes
No
Buisness impacts as per you due to performance issues.
Reduction in customer retention
Diminished Quality of Service
Hindering brand reputation
Less visibility in future business growth
Low profit mergin
Cut off in CoE setup and innovation budget
Average yearly revenue loss as per you due to performance issues.
Next


The GenoSets systems allows you to load annotation files in GFF3 format.
The file must contain the nucleotide FASTA sequences for each of the seqid (column 1) listed in the file. It may contain additional nucleotide sequences that do not have associated feature annotations and these assembled units will be saved in the database. The inclusion of protein sequences in the FASTA section is optional.
Important
If the protein sequences are omitted, then the types of the features to
be translated must be specified in the wizard (see below).
You can add an additional annotation set to an existing organism or you may create a new organism.
Important
If the protein sequences are not included in the FASTA section of the file,
then the feature types must be specified in the wizard.
The most common type is 'CDS' but in some cases the type is specified as 'gene'. If the type is 'gene' then the file most likely does not contain any 'CDS' features. Note: GenBank/EMBL/DDBJ and PATRIC GFF3 annotations often include both a gene and CDS entry for a single locus. In this case, the translation type should be specified as 'CDS'. Multiple feature types may be seperated by line, tab, comma, or semicolumn.