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How do Trigonometric functions work?
...ndard interval. For starters, you could reduce angles to be between 0 and 360 degrees. But by using a few identities, you realize you could get by with less. If you calculate sines and cosines for angles between 0 and 45 degrees, you can bootstrap your way to calculating all trig functions for all...
bash HISTSIZE vs. HISTFILESIZE?
...session, you start over at 1 with a HISTFILE of HISTFILESIZE=10.
Example 3:
HISTFILESIZE=5 and HISTSIZE=10
You start your session.
Your HISTFILE (file that stores your bash command history), is truncated to contain at most HISTFILESIZE=5 lines.
You write 50 lines.
At the end of your 50 command...
Uninstall old versions of Ruby gems
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663
# remove all old versions of the gem
gem cleanup rjb
# choose which ones you want to remove
gem...
SQL standard to escape column names?
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edited Oct 22 '18 at 3:27
Basil Bourque
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Return type of '?:' (ternary conditional operator)
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3 Answers
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Is there a naming convention for Django apps
...rcase names, although the use of underscores is
discouraged.
So, 1 and 3 are both valid, but 3 would be the recommended approach.
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Rails where condition using NOT NIL
Using the rails 3 style how would I write the opposite of:
5 Answers
5
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How to select unique records by SQL
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Arsen Khachaturyan
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answered Oct 29 '09 at 5:09
mjalldaymjallday
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How to read the RGB value of a given pixel in Python?
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13 Answers
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jQuery UI slider Touch & Drag/Drop support on Mobile devices
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jQuery ui doesn't have touch support. You should use it with jQuery-ui touch punch.
Just add th...