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Calculating arithmetic mean (one type of average) in Python
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compie
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answered Oct 10 '11 at 17:22
NPENPE
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Which keycode for escape key with jQuery
...e happens to do).
– dkamins
May 12 '10 at 3:31
213
"This has nothing to do with keyup vs. keypres...
What does Visual Studio mean by normalize inconsistent line endings?
...ut up.
– CloudMeta
Feb 16 '09 at 16:10
53
Ah, but what if you're just using VS to fix something t...
Convert to absolute value in Objective-C
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edited Jan 20 '13 at 10:47
answered Jan 17 '11 at 19:39
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Transform DateTime into simple Date in Ruby on Rails
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answered Jul 10 '09 at 16:57
Ryan McGearyRyan McGeary
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How can I pair socks from a pile efficiently?
... sock had an integer called "PairID" one could easily distribute them into 10 buckets according to PairID % 10 (the last digit).
The best real-world partitioning I can think of is creating a rectangle of piles: one dimension is color, the other is the pattern. Why a rectangle? Because we need O(1) ...
Deserialize from string instead TextReader
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answered Feb 27 '10 at 14:34
ElmerElmer
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How to git log in reverse order?
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edited Sep 10 '15 at 18:03
tshepang
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Numpy where function multiple conditions
...st give you [2,3,4]. Here it is in action:
In [230]: dists = np.arange(0,10,.5)
In [231]: r = 5
In [232]: dr = 1
In [233]: np.where(dists >= r)
Out[233]: (array([10, 11, 12, 13, 14, 15, 16, 17, 18, 19]),)
In [234]: np.where(dists <= r+dr)
Out[234]: (array([ 0, 1, 2, 3, 4, 5, 6, 7, ...
There can be only one auto column
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The full error message sounds:
ERROR 1075 (42000): Incorrect table definition; there can be only one auto column and it must be defined as a key
So add primary key to the auto_increment field:
CREATE TABLE book (
id INT AUTO_INCREMENT primary key NOT NULL,...