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How to install multiple python packages at once using pip
... installed wsgiref and boto in a clean virtualenv):
$ pip freeze
boto==2.3.0
wsgiref==0.1.2
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What's the standard way to work with dates and times in Scala? Should I use Java types or there are
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From Java SE 8 onwards, users are asked to migrate to java.time (JSR-310). There are efforts on ...
How to properly overload the
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answered Jan 24 '09 at 16:37
Mehrdad AfshariMehrdad Afshari
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pip broke. how to fix DistributionNotFound error?
...wPtoneNewPtone
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Completely uninstall PostgreSQL 9.0.4 from Mac OSX Lion?
...jor differences. I'm running Lion and I'm trying to uninstall PostgreSQL 9.0.4. I've looked at the last question and the link that it referenced, but I did not find a file called "uninstall-postgresql" when I run this command:
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How to make join queries using Sequelize on Node.js
... pkyeck
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answered Dec 9 '13 at 9:28
Jan Aagaard MeierJan Aagaard Meier
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What should I do if the current ASP.NET session is null?
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edited Jun 20 at 9:12
Community♦
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answered Sep 5 '09 at 8:51
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Algorithm to detect intersection of two rectangles?
...e = v(n) - v(n-1)
You can get a perpendicular to this by rotating it by 90°. In 2D this is easy as:
rotated.x = -unrotated.y
rotated.y = unrotated.x
So no trigonometry or slopes involved. Normalizing the vector to unit-length is not required either.
If you want to test if a point is on o...
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