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Ball to Ball Collision - Detection and Handling
...ss, the new velocities can be calculated using the equations (where v1 and v2 are the velocities after the collision, and u1, u2 are from before):
If the balls have the same mass then the velocities are simply switched. Here's some code I wrote which does something similar:
void Simulation::...
Link to the issue number on GitHub within a commit message
...rs or less
More detailed explanatory text, if necessary. Wrap it to about 72
characters or so. In some contexts, the first line is treated as the
subject of the commit and the rest of the text as the body. The
blank line separating the summary from the body is critical (unless
you omit the body ent...
Display filename before matching line
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MD XF
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answered Mar 15 '13 at 12:38
ScrutinizerScrutini...
How to “inverse match” with regex?
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72
(?!Andrea).{6}
Assuming your regexp engine supports negative lookaheads..
Edit: ..or maybe y...
Post JSON using Python Requests
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72
From requests 2.4.2 (https://pypi.python.org/pypi/requests), the "json" parameter is supported....
What characters are valid for JavaScript variable names?
...671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u08a0\u08a2-\u08ac\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097f\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-...
How do you do block comments in YAML?
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72
In Vim you can do one of the following:
Comment all lines: :%s/^/#
Comment lines 10 - 15: :1...
Footnotes for tables in LaTeX
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72
This is a classic difficulty in LaTeX.
The problem is how to do layout with floats (figures an...
Display two files side by side
...
To expand a bit on @Hasturkun's answer: by default pr uses only 72 columns for its output, but it's relatively easy to make it use all available columns of your terminal window:
pr -w $COLUMNS -m -t one.txt two.txt
Most shell's will store (and update) your terminal's screenwidth in the...
How do you check if a certain index exists in a table?
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Mr McGooMr McGoo
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add a com...