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“static const” vs “#define” vs “enum”
...e case here.
– Jonathan Leffler
Mar 27 '15 at 3:59
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How do you get the magnitude of a vector in Numpy?
...file.run('np.sqrt((V*V).sum(axis=1))') # 5 function calls in 0.027 seconds
cProfile.run('np.sqrt(inner1d(V,V))') # 2 function calls in 0.009 seconds
inner1d is ~3x faster than linalg.norm and a hair faster than einsum
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Refresh image with a new one at the same url
...ent identifiers in their URLs (However, I've tested this successfully in FF27, Chrome33, and IE11). Does still send a revalidation request to the server for every image view, which may be overkill if images only change rarely and/or latency is a big issue (since you need to wait for the revalidatio...
How Do You Clear The IRB Console?
...y.
– Ben Hoffstein
Sep 22 '08 at 18:27
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system('clear') will also work on a Mac. It should be no...
Find the number of columns in a table
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edited Sep 27 '17 at 7:28
Dmitry Bychenko
142k1616 gold badges129129 silver badges172172 bronze badges
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to remove first and last element in array
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edited Nov 27 '17 at 8:11
Aurasphere
3,2801212 gold badges3434 silver badges5757 bronze badges
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How does this checkbox recaptcha work and how can I use it?
...014/12/…
– Nealvs
Dec 3 '14 at 21:27
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Where does this explain, how the new No CAPTCHA reCAPTCH...
Sample settings.xml for maven
...u003cpath fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M25.6622 17.6335C27.8049 17.6335 29.3739 16.9402 30.2537 15.6379C30.8468 14.7755 30.9615 13.5579 30.9615 11.9512V6.59049C30.9615 5.28821 30.4833 4.66231 29.4502 4.66231C28.9913 4.66231 28.4555 4.94978 28.1109 5.50789C27.499 4.86533 26.7335 4....
What are the most-used vim commands/keypresses?
...e_escape_key
– Lian
Sep 23 '13 at 7:27
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How can I indent multiple lines in Xcode?
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927
The keyboard shortcuts are ⌘+] for indent and ⌘+[ for un-indent.
In Xcode's preferences...