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How can I quantify difference between two images?
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22 Answers
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Get final URL after curl is redirected
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201
curl's -w option and the sub variable url_effective is what you are
looking for.
Something li...
Performance of Java matrix math libraries? [closed]
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Just to add my 2 cents. I've compared some of these libraries. I attempted to matrix multiply a 3000 by 3000 matrix of doubles with itself. The results are as follows.
Using multithreaded ATLAS with C/C++, Octave, Python and R, the time ta...
How to get duplicate items from a list using LINQ? [duplicate]
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240
var duplicates = lst.GroupBy(s => s)
.SelectMany(grp => grp.Skip(1));
Note that th...
Find MongoDB records where array field is not empty
...lution:
ME.find({ pictures: { $exists: true, $ne: [] } })
Since MongoDB 2.6 release, you can compare with the operator $gt but could lead to unexpected results (you can find a detailled explanation in this answer):
ME.find({ pictures: { $gt: [] } })
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How to get instance variables in Python?
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answered Sep 20 '08 at 19:34
cnucnu
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Resource interpreted as stylesheet but transferred with MIME type text/html (seems not related with
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How to set auto increment primary key in PostgreSQL?
I have a table in PostgreSQL with 22 columns, and I want to add an auto increment primary key.
7 Answers
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What's the difference between deque and list STL containers?
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edited Jun 20 at 9:12
Community♦
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answered Sep 16 '09 at 23:34
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How to check if there's nothing to be committed in the current branch?
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241
An alternative to testing whether the output of git status --porcelain is empty is to test eac...