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How do I compute derivative using Numpy?
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Automatic Derivatives
Symbolic Differentiation
Compute derivatives by hand.
Finite differences require no external tools but are prone to numerical error and, if you're in a multivariate situation, can take a while.
Symbolic differentiation is ideal if your problem is simple enough. Symbolic...
How to detect duplicate values in PHP array?
...he presence of duplicate values, then count the number of duplicate values and out put the results. For example, given the following array:
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Bash set +x without it being printed
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I had the same problem, and I was able to find a solution that doesn't use a subshell:
set -x
command
{ set +x; } 2>/dev/null
share
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improve ...
How do I prevent commands from showing up in Bash history?
Sometimes, when I run commands like rm -rf XYZ , I don't want this to be recorded in Bash history, because I might accidentally run the same command again by reverse-i-search . Is there a good way to prevent this from happening?
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How to specify in crontab by what user to run script? [closed]
...xample all folders created in process of that cron job are under user root and group root.
How can i make it to run under user www-data and group www-data so when i run scripts from my website i can manipulate those folders and files?
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In C++, what is a “namespace alias”?
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To possibly explain the downvotes, SO is not and never will be a replacement forv a good C++ textbook. The question you posed will be answered by any such book. And the SO "feature" of answering your own questions should not be used to provide paraphrases of such books....
Android:What is difference between setFlags and addFlags for intent
What is difference between setFlags and addFlags for intent. Could any one explain it please.
Help Appreciated.
3 Answers
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“X-UA-Compatible” content=“IE=9; IE=8; IE=7; IE=EDGE”
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If you support IE, for versions of Internet Explorer 8 and above, this:
<meta http-equiv="X-UA-Compatible" content="IE=9; IE=8; IE=7" />
Forces the browser to render as that particular version's standards. It is not supported for IE7 and below.
If you separate with semi...
Remove ALL styling/formatting from hyperlinks
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@david, Does it still stand? Does inherit not work only in anciet browsers and Internet Explorer or there are difficulties in popular browsers (Chrome, Firefox) too?
– parsecer
Oct 16 '16 at 1:10
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':app:lintVitalRelease' error when generating signed apk
I've tried to upload my apk on google play and encountered an error message: "You uploaded a debuggable APK. For security reasons you need to disable debugging before it can be published in Google Play. Learn more about debuggable APKs."
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