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What characters can be used for up/down triangle (arrow without stem) for display in HTML?
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1647
Unicode arrows heads:
▲ - U+25B2 BLACK UP-POINTING TRIANGLE
▼ - U+25BC BLACK DOWN-POINTIN...
Can two different strings generate the same MD5 hash code?
...ou should worry about. Considering the birthday paradox, given a set of 2^64 (or 18,446,744,073,709,551,616) assets, the probability of a single MD5 collision within this set is 50%. At this scale, you'd probably beat Google in terms of storage capacity.
However, because the MD5 hash function has b...
adding noise to a signal in python
...te.
– Edward Loper
Dec 27 '12 at 17:48
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Which one will execute faster, if (flag==0) or if (0==flag)?
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edited May 22 '14 at 0:22
user703016
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How to represent multiple conditions in a shell if statement?
...cters):
if [ \( "$g" -eq 1 -a "$c" = "123" \) -o \( "$g" -eq 2 -a "$c" = "456" \) ]
then echo abc
else echo efg
fi
I've enclosed the references to $g in double quotes; that's good practice, in general. Strictly, the parentheses aren't needed because the precedence of -a and -o makes it correct e...
How can I convert tabs to spaces in every file of a directory?
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answered Jun 19 '12 at 4:35
Martin BeckettMartin Beckett
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Modify SVG fill color when being served as Background-Image
...'); ?>
– slightlyfaulty
Aug 21 '14 at 10:53
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Check substring exists in a string in C
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Jiminion
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answered Oct 8 '12 at 15:30
nneonneonneonneo
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Why are these numbers not equal?
...About Floating-point Arithmetic," ACM Computing Surveys 23, 1 (1991-03), 5-48 doi>10.1145/103162.103163 (revision also available)
The Floating-Point Guide - What Every Programmer Should Know About Floating-Point Arithmetic
0.30000000000000004.com compares floating point arithmetic across programm...