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How do I find Waldo with Mathematica?
...ring out all colours that aren't red
waldo = Import["http://www.findwaldo.com/fankit/graphics/IntlManOfLiterature/Scenes/DepartmentStore.jpg"];
red = Fold[ImageSubtract, #[[1]], Rest[#]] &@ColorSeparate[waldo];
Next, I'm calculating the correlation of this image with a simple black and white ...
Difference between Pragma and Cache-Control headers?
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Although the answer of cnst below is much more complicated, it is also much more correct according to the specification. Pragma: no-cache is intended to be used only in requests (meaning "I want the original, not a cached copy") and its behaviour is not specified for resp...
Decorators with parameters?
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I'd like to show an idea which is IMHO quite elegant. The solution proposed by t.dubrownik show...
How can I split up a Git commit buried in history?
...bbed up my history and want to do some changes to it. Problem is, I have a commit with two unrelated changes, and this commit is surrounded by some other changes in my local (non-pushed) history.
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Remove accents/diacritics in a string in JavaScript
...wo things are happening here:
normalize()ing to NFD Unicode normal form decomposes combined graphemes into the combination of simple ones. The è of Crème ends up expressed as e + ̀.
Using a regex character class to match the U+0300 → U+036F range, it is now trivial to globally get rid of the ...
Allow user to set up an SSH tunnel, but nothing else
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91
On Ubuntu 11.10, I found I could block ssh commands, sent with and without -T, and block scp co...
DateTime.Now vs. DateTime.UtcNow
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Leniel Maccaferri
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answered Sep 15 '08 at 11:02
Blair Conr...
In Visual Studio C++, what are the memory allocation representations?
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What is the difference between #import and #include in Objective-C?
... Reto Koradi
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answered Jan 13 '09 at 16:29
Jason CocoJason Coco
75.8k2020...
Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?
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I updated the results with 2049x2049 - 91 seconds. If it was "cache problem", shouldn't this still be 300+ s?
– Wolf
May 19 '11 at 15:35
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