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Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?
...ng powf(a, 6.f): 5.96e-08
worst relative error using (a*a*a)*(a*a*a): 2.94e-07
worst relative error using a*a*a*a*a*a: 2.58e-07
Using pow instead of a multiplication tree reduces the error bound by a factor of 4. Compilers should not (and generally do not) make "optimizations" that increas...
wkhtmltopdf: cannot connect to X server
...
downloading wkhtmltox-linux-amd64_0.12.0-03c001d.tar.xz works for me now. For some reason the latest does not.
– chasetheskyforever
Jul 17 '14 at 15:35
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Track the time a command takes in UNIX/LINUX?
...ep of one second looks like, timed with time:
$ time sleep 1
real 0m1.001s
user 0m0.000s
sys 0m0.000s
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How do I redirect output to a variable in shell? [duplicate]
...the output of one as an argument in the other.
– user001
Aug 11 '14 at 0:02
3
@PhươngNguyễn, ...
How can I profile Python code line-by-line?
... 11.1 IntParIO = IntLoc - IntGlob
156 50000 65494 1.3 10.8 EnumLoc = Ident1
157 50000 68001 1.4 11.2 if EnumLoc == Ident1:
158 50000 63739 1.3 10.5 break
159 50000 6157...
How do I measure request and response times at once using cURL?
...tring parameters
And here is what you get back:
time_namelookup: 0.001s
time_connect: 0.037s
time_appconnect: 0.000s
time_pretransfer: 0.037s
time_redirect: 0.000s
time_starttransfer: 0.092s
----------
time_total: 0.164s
Make a Linux/Mac s...
How do I make my GUI behave well when Windows font scaling is greater than 100%
..., at 96dpi)
user running with Tahoma 8pt (where the average character is 5.94px x 13.00px, at 96dpi)
As was the case with anyone developing an application for Windows 2000 or Windows XP.
or
developer designed the form with **Tahoma 8pt* (where the average character is 5.94px x 13.00px, at 96dpi...
Trouble comparing time with RSpec
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.000001 s is a bit tight. I tried even .001 and it was failing sometimes. Even .1 seconds I think proves that the time is being set to now. Good enough for my purposes.
– smoyth
Oct 16 '14 a...
Difference between __str__ and __repr__?
... true because for obj = uuid.uuid1(), obj.__str__() is "2d7fc7f0-7706-11e9-94ae-0242ac110002" and obj.__repr__() is "UUID('2d7fc7f0-7706-11e9-94ae-0242ac110002')". Developers need (value + origin) whereas customers need a value and they don't care how they got it!
– Naren Yella...
How to read the content of a file to a string in C?
...l be used. See this post for more information.
– user001
May 20 '19 at 5:56
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