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Big O, how do you calculate/approximate it?
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I'll do my best to explain it here on simple terms, but be warned that this topic takes my students a couple of months to finally grasp. You can find more information on the Chapter 2 of the Data Structures and Algorithms in Java book.
There ...
SQL Logic Operator Precedence: And and Or
...nd b
is not the same as
Where a1 Or a2 And b,
because that would be Executed as
Where a1 Or (a2 And b)
and what you want, to make them the same, is the following (using parentheses to override rules of precedence):
Where (a1 Or a2) And b
Here's an example to illustrate:
Declare @x tin...
Difference between staticmethod and classmethod
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Maybe a bit of example code will help: Notice the difference in the call signatures of foo, class_foo and static_foo:
class A(object):
def foo(self, x):
print "executing foo(%s, %s)" % (self, x)
@classmethod
def class_f...
bash: pip: command not found
... ran python setup.py install and everything worked just fine. The very next step in the tutorial is to run pip install <lib you want> but before it even tries to find anything online I get an error "bash: pip: command not found".
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Difference between Pragma and Cache-Control headers?
...m caching the response is a confusing note for readers. It can also have max-age which doesn't prevent caching. It just sets an expiration date for it...
– Honey
Oct 23 '18 at 17:47
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How can I index a MATLAB array returned by a function without first assigning it to a local variable
For example, if I want to read the middle value from magic(5) , I can do so like this:
9 Answers
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How to remove files and directories quickly via terminal (bash shell) [closed]
...ng (folders & files) in the current directory.
But be careful! Only execute this command if you are absolutely sure, that you are in the right directory.
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Install autoreconf on OS X v10.7 (Lion)?
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brew isn't included with OSX, but you can get it here: mxcl.github.com/homebrew
– RobM
Apr 25 '12 at 11:45
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Upgrade python in a virtualenv
... way to upgrade the version of python used in a virtualenv (e.g. if a bugfix release comes out)?
12 Answers
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How can I find the version of the Fedora I use?
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Thanks, Indeed is a Red Hat Enterprise Linux AS release 4 (Nahant Update 5)
– pindare
Feb 12 '09 at 9:47
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