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Location Services not working in iOS 8
... @Vjay - you have to edit the Info.plist file in an editor, cannot set those keys in Xcode (as of beta 6).
– Kendall Helmstetter Gelner
Aug 23 '14 at 8:06
11
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Initializing a list to a known number of elements in Python [duplicate]
...
10 loops, best of 3: 177 ms per loop
Comparison to numpy
For huge data set numpy or other optimized libraries are much faster:
from numpy import ndarray, zeros
%timeit empty((N,))
1000000 loops, best of 3: 788 ns per loop
%timeit zeros((N,))
100 loops, best of 3: 3.56 ms per loop
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Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)
...il return. It then goes on and returns an empty array if the second arg is set to zero. while if 5 is passed in, there are not 5 elements in the array, so it returns nil before the zero arg is evaluated. code here at line 944.
I believe this to be a bug, or at least unpredictable and not the 'Princ...
Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
...eed = 1
exec( "\n".join( sys.argv[1:] )) # run this.py N= ...
np.set_printoptions( 1, threshold=200, edgeitems=5, suppress=True )
np.random.seed(seed)
random.seed(seed)
print "N %d dim %d ncluster %d kmsample %d metric %s" % (
N, dim, ncluster, kmsample, metric)
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How do you show animated GIFs on a Windows Form (c#)
...
Durr, I had set it as the background image by mistake. Background image, reasonably, doesn't support animation; foreground image does.
– neminem
Dec 23 '15 at 16:47
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When should I use a List vs a LinkedList
... position i:
update the pointer in member i-1 to point to the new member
set the pointer in the new member to point to member i
The disadvantage to a linked list is that random access is not possible. Accessing a member requires traversing the list until the desired member is found.
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Timeout a command in bash without unnecessary delay
...sf immediately. But ugh, you have to choose a polling interval. And if you set the polling too low, it will eat CPU with constant signaling, making the tlrbsf run even longer!
– system PAUSE
Mar 27 '09 at 0:28
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How to show the “Are you sure you want to navigate away from this page?” when changes committed?
... now only display generic messages. Since we no longer have to worry about setting the message, it is as simple as:
// Enable navigation prompt
window.onbeforeunload = function() {
return true;
};
// Remove navigation prompt
window.onbeforeunload = null;
Read below for legacy browser support....
How can I see the raw SQL queries Django is running?
...ueries:
from django.db import connection
print(connection.queries)
Querysets also have a query attribute containing the query to be executed:
print(MyModel.objects.filter(name="my name").query)
Note that the output of the query is not valid SQL, because:
"Django never actually interpolates...
Implicit type conversion rules in C++ operators
...ermined from the observable behavior of the program.
The compiler cannot set an int to be 8 bits in size, even if it were the fastest, since the standard mandates a 16-bit minimum int.
Therefore, in the case of a theoretical computer with super-fast 8-bit operations, the implicit promotion to int...