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How can I check a C# variable is an empty string “” or null? [duplicate]
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@Lion Liu: Actually I think PHP has exactly as much to offer. See: php.net/manual/en/function.empty.php
– Milan
Feb 2 '16 at 20:09
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How to remove convexity defects in a Sudoku square?
...he first step is to adjust the brightness in the image, by dividing each pixel with the result of a closing operation:
src = ColorConvert[Import["http://davemark.com/images/sudoku.jpg"], "Grayscale"];
white = Closing[src, DiskMatrix[5]];
srcAdjusted = Image[ImageData[src]/ImageData[white]]
The ...
How do you change the size of figures drawn with matplotlib?
...gsize=(1,1)) would create an inch-by-inch image, which would be 80-by-80 pixels unless you also give a different dpi argument.
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No == operator found while comparing structs in C++
...memcmp so long your structs don't contain pointer.
– Xeo
Apr 21 '11 at 6:59
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@Xeo: memcmp fails...
Is there a standard for storing normalized phone numbers in a database?
...ng phone numbers in database fields? I'm looking for something that is flexible enough to handle international numbers, and also something that allows the various parts of the number to be queried efficiently.
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How do I move the turtle in LOGO? [closed]
...r of screen pointing up
LEFT [LT] - Turn turtle left
NODRAW [ND] - Enter text mode with clear screen
NOWRAP - Prevent drawings from wrapping around screen
PENCOLOR [PC] - Change pen color
PENDOWN [PD] - Turtle leaves trail
PENUP [PU] - Turtle ceases to leave trail
RIGHT ## [RT] - Turn turtle right
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WPF Button with Image
...e fails. Seems strange after similar code would work perfectly in Mozilla XUL.
6 Answers
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Completely uninstall PostgreSQL 9.0.4 from Mac OSX Lion?
...QL with homebrew as referenced in check status of postgresql server Mac OS X and how to start postgresql server on mac os x: you can use the brew uninstall postgresql command.
EnterpriseDB Installer
If you used the EnterpriseDB installer then see the other answer in this thread.
The EnterpriseDB...
Where's my JSON data in my incoming Django request?
I'm trying to process incoming JSON/Ajax requests with Django/Python.
12 Answers
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