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How do I compute derivative using Numpy?
...es
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 kill a child process after a given timeout in Bash?
... launches a child process that crashes (actually, hangs) from time to time and with no apparent reason (closed source, so there isn't much I can do about it). As a result, I would like to be able to launch this process for a given amount of time, and kill it if it did not return successfully after a...
Xcode “Build and Archive” from command line
Xcode 3.2 provides an awesome new feature under the Build menu, "Build and Archive" which generates an .ipa file suitable for Ad Hoc distribution. You can also open the Organizer, go to "Archived Applications," and "Submit Application to iTunesConnect."
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How to “comment-out” (add comment) in a batch/cmd?
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The rem command is indeed for comments. It doesn't inherently update anyone after running the script. Some script authors might use it that way instead of echo, though, because by default the batch interpreter will print out each command...
What's Go's equivalent of argv[0]?
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import "os"
os.Args[0] // name of the command that it is running as
os.Args[1] // first command line parameter, ...
Arguments are exposed in the os package http://golang.org/pkg/os/#Variables
If you're going to do argument handling, the flag package http://golang....
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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How to convert IPython notebooks to PDF and HTML?
...o steps.
For HTML output, you should now use Jupyter in place of IPython and select File -> Download as -> HTML (.html) or run the following command:
jupyter nbconvert --to html notebook.ipynb
This will convert the Jupyter document file notebook.ipynb into the html output format.
Goog...
How does this giant regex work?
...e nicely done. Basically, it lists all the files in the current directory, and it lets you change directories.
4 Answers
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XPath query to get nth instance of an element
...I just assumed simple left-to-right precedence).
– rlandster
Oct 24 '10 at 16:30
11
@rlandster: T...
Eclipse hangs on loading workbench
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DISCLAIMER: THIS WILL DELETE ALL OF YOUR ECLIPSE WORKSPACE SETTINGS AND YOU WILL HAVE TO RE-IMPORT ALL YOUR PROJECTS, THERE ARE LESS DESTRUCTIVE ANSWERS HERE
Try the following:
Delete the .metadata folder in your local workspace (this is what worked for me). It seems that it contains a .LO...