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What does numpy.random.seed(0) do?

... If you set the np.random.seed(a_fixed_number) every time you call the numpy's other random function, the result will be the same: >>> import numpy as np >>> np.random.seed(0) >>> perm = np.random.permutation(10) >>> p...
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How do I represent a hextile/hex grid in memory?

... Board: # Layout is just a double list of Tiles, some will be None def __init__(self, layout=None): self.numRows = len(layout) self.numCols = len(layout[0]) self.hexagons = [[None for x in xrange(self.numCols)] for x in xrange(self.numRows)] self.edges = [[None for x in xrange(s...
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FormData.append(“key”, “value”) is not working

...a, the way to check the appended information on the server is by a simple $_POST['*your appended data*'] query. like so: js: $('form').submit(function(){ var sessionID = 8; var formData = new FormData(this); formData.append('id', sessionID); $.ajax({ url: "yoururl.php", ...
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How do I shuffle an array in Swift?

...Distance` in < Swift 4.1 let d: Int = numericCast(arc4random_uniform(numericCast(unshuffledCount))) let i = index(firstUnshuffled, offsetBy: d) swapAt(firstUnshuffled, i) } } } extension Sequence { /// Returns an array with the contents of this...
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How to check if a value exists in a dictionary (python)

...ed for lookup operations: >>> type(d.viewvalues()) <type 'dict_values'> >>> type(d.values()) <type 'list'> >>> type(d.itervalues()) <type 'dictionary-valueiterator'> EDIT2: As per request in comments... >>> T(lambda : 'four' in d.itervalues()...
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Compiling with cython and mingw produces gcc: error: unrecognized command line option '-mno-cygwin'

...Python26\Lib\distutils\cygwinccompiler.py 4) In the same module, modify get_msvcr() to return an empty list instead of ['msvcr90'] when msc_ver == '1500' . Produce the libpython26.a file (not included in 64 bit python) Edit 2013: the following steps 5-10 can be skipped by downloading and installing...
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href image link download on click

... <a href="download.php?file=path/<?=$row['file_name']?>">Download</a> download.php: <?php $file = $_GET['file']; download_file($file); function download_file( $fullPath ){ // Must be fresh start if( headers_sent() ) die('Headers Sent'); ...
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Unsubscribe anonymous method in C#

...approach: public class SomeClass { private readonly IList<Action> _eventList = new List<Action>(); ... public event Action OnDoSomething { add { _eventList.Add(value); } remove { _eventList.Remove(value); } } } Override the event add/remove met...
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How to draw a line in android

...rself just simple and clean add the line in xml. <View android:layout_width="match_parent" android:layout_height="1dp" android:background="@android:color/black" /> The example code I provided will generate a line that fills the screen in width and has a height of one dp. If you have ...
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Debug vs Release in CMake

...Then from the root of your project: mkdir Release cd Release cmake -DCMAKE_BUILD_TYPE=Release .. make And for Debug (again from the root of your project): mkdir Debug cd Debug cmake -DCMAKE_BUILD_TYPE=Debug .. make Release / Debug will add the appropriate flags for your compiler. There are als...