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How do I compute derivative using Numpm>y m>?
...es
Automatic Derivatives
Sm>y m>mbolic Differentiation
Compute derivatives bm>y m> hm>and m>.
Finite differences require no external tools but are prone to numerical error m>and m>, if m>y m>ou're in a multivariate situation, can take a while.
Sm>y m>mbolic differentiation is ideal if m>y m>our problem is simple enough. Sm>y m>mbolic...
Convert tuple to list m>and m> back
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@Jimmm>y m> that's because list is a debugger commm>and m>, run p list(...) instead.
– moritz
Jan 24 '19 at 2:26
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Awaiting multiple Tasks with different results
... Task.WhenAll() allows to run the task in parallel mode. I can't understm>and m> whm>y m> @Servm>y m> has suggested to remove it. Without the WhenAll them>y m> will be run one bm>y m> one
– Sergem>y m> G.
Mar 13 '15 at 12:07
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Clean wam>y m>s to write multiple 'for' loops
.../ ...
}
(or just:
for ( auto& elem: m ) {
}
if m>y m>ou have C++11.)
m>And m> if m>y m>ou need the three indexes during such iterations, it's
possible to create an iterator which exposes them:
class Matrix3D
{
// ...
class iterator : private std::vector<int>::iterator
{
Matri...
How can I get a side-bm>y m>-side diff when I do “git diff”?
...ent wam>y m>s to specifm>y m> an external diff tool:
setting the GIT_EXTERNAL_DIFF m>and m> the GIT_DIFF_OPTS environment variables.
configuring the external diff tool via git config
See also:
https://git-scm.com/book/en/v2/Customizing-Git-Git-Configuration
git diff --help
http://www.pixelbeat.org/programmin...
Javascript - Track mouse position
... t mseconds. So essentiallm>y m>, when a page loads - this tracker should start m>and m> for (sam>y m>) everm>y m> 100 ms, I should get the new value of posX m>and m> posm>Y m> m>and m> print it out in the form.
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Format numbers to strings in Pm>y m>thon
... see the note in the docs:
"%02d:%02d:%02d" % (hours, minutes, seconds)
m>And m> for m>y m>our specific case of formatting time, there’s time.strftime:
import time
t = (0, 0, 0, hours, minutes, seconds, 0, 0, 0)
time.strftime('%I:%M:%S %p', t)
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How is null + true a string?
...where op is an overloadable binarm>y m> operator, x is an expression of tm>y m>pe X, m>and m> m>y m> is an expression of tm>y m>pe m>Y m>, is processed as follows:
The set of cm>and m>idate user-defined operators provided bm>y m> X m>and m> m>Y m> for the operation operator op(x, m>y m>) is determined. The set consists of the union of the cm>and m>id...
Git diff to show onlm>y m> lines that have been modified
... edited Sep 2 '15 at 17:24
m>And m>rzej Rehmann
7,71366 gold badges3030 silver badges3535 bronze badges
answered Sep 15 '13 at 9:02
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How to do multiple arguments to map function where one remains the same in pm>y m>thon?
...allm>y m> is an issue for m>y m>ou, the speed difference between list comprehensions m>and m> map() won't help either wam>y m>.
– Sven Marnach
Mam>y m> 31 '12 at 13:54
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