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Foreign key constraints: When to use ON UPDATE and ON DELETE
I'm designing my database schema using MySQL Workbench, which is pretty cool because you can do diagrams and it converts them :P
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Determining complexity for recursive functions (Big O notation)
I have a Computer Science Midterm tomorrow and I need help determining the complexity of these recursive functions. I know how to solve simple cases, but I am still trying to learn how to solve these harder cases. These were just a few of the example problems that I could not figure out. Any help wo...
Load local JSON file into variable
...to load a .json file into a variable in javascript, but I can't get it to work. It's probably just a minor error but I can't find it.
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How do I force Sublime Text to indent two spaces per tab?
Is there a way to force Sublime Text 2 to always indent two spaces per tab when working with Ruby files?
6 Answers
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What is the “Temporary ASP.NET Files” folder for?
I've discovered this folder in C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files and have a few questions.
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Is there a way to detach matplotlib plots so that the computation can continue?
...tplotlib's calls that won't block:
Using draw():
from matplotlib.pyplot import plot, draw, show
plot([1,2,3])
draw()
print('continue computation')
# at the end call show to ensure window won't close.
show()
Using interactive mode:
from matplotlib.pyplot import plot, ion, show
ion() # enables inter...
How to set JAVA_HOME in Linux for all users
...not-privileged user, ie. sudo vim
Press 'i' to get in insert mode
add:
export JAVA_HOME="path that you found"
export PATH=$JAVA_HOME/bin:$PATH
logout and login again, reboot, or use source /etc/profile to apply changes immediately in your current shell
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matplotlib Legend Markers Only Once
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This should work:
legend(numpoints=1)
BTW, if you add the line
legend.numpoints : 1 # the number of points in the legend line
to your matplotlibrc file, then this will be the new default.
[See also scatterpoints, depending...
How to access SOAP services from iPhone
I'm planning to develop an app for the iPhone and that app would have to access a couple of SOAP services. While doing some basic checking in the iPhone SDK I was not able to find any support for accessing SOAP services, a bit of Googling lead to the conclusion that there is no support for SOAP in t...
How do HashTables deal with collisions?
...irst option, is there any reason a linked list is used instead of an array or even a binary search tree?
– user142019
May 5 '13 at 5:28
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