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Slicing of a NumPy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m)?
I want to slice a NumPy nxn array. I want to extract an arbitrary selection of m rows and columns of that array (i.e. without any pattern in the numbers of rows/columns), making it a new, mxm array. For this example let us say the array is 4x4 and I want to extract a 2x2 array from it.
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Dependent DLL is not getting copied to the build output folder in Visual Studio
...tput folder. (It would be copied to the ProjectX output folder, to make it extra-confusing.)
So, if you're not explicitly using any of the types from abc.dll anywhere in ProjectX, then put a dummy declaration somewhere in one of the files in ProjectX.
AbcDll.AnyClass dummy006; // this will be enou...
What is the runtime performance cost of a Docker container?
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Now some examples of memory (read the paper for details, memory can be extra tricky):
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What is the difference between using IDisposable vs a destructor in C#?
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One extra thing to say. Do not add a finalizer to your class unless you really, really need one. If you add a finalizer (destructor) the GC has to call it (even an empty finalizer) and to call it the object will always survive a ...
ng-repeat finish event
... end of the loop, here's a slightly simpler variation that doesn't require extra event handling:
<div ng-controller="Ctrl">
<div class="thing" ng-repeat="thing in things" my-post-repeat-directive>
thing {{thing}}
</div>
</div>
function Ctrl($scope) {
$scope.thing...
Why does sun.misc.Unsafe exist, and how can it be used in the real world?
...}, such as {@link
java.util.concurrent.atomic.AtomicLongArray}, require extra memory ordering
guarantees which are generally not needed in these algorithms and are also
expensive on most processors.
SoyLatte - java 6 for osx javadoc excerpt
/** Base class for sun.misc.Unsafe-based F...
When to use IList and when to use List
...List<T> but had to later change to use a custom list library for the extra functionality it provided. Because I'd only returned an IList<T> none of the people that used the library had to change their code.
Of course that only need apply to methods that are externally visible (i.e. publ...
How to sleep for five seconds in a batch file/cmd [duplicate]
...ait for. If the accuracy of the wait time is important (ie a second or two extra delay is not acceptable), you can use this approach:
powershell -command "$sleepUntil = [DateTime]::Parse('%date% %time%').AddSeconds(5); $sleepDuration = $sleepUntil.Subtract((get-date)).TotalMilliseconds; start-sleep...
Get key by value in dictionary
...ch.
I have not considered memory usage. I'm not sure if method 3 creates 2 extra lists (keys() and values()) and stores them in memory.
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Managing CSS Explosion
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@Miguel, it doesn't work that way. Browsers read a CSS string backwards, so it would take: "div .myclass" and find all ".myclass" classes, and then check if it is an ancestor of a div.
– mwilcox
Jan 27 '11 at 19:04
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