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What is the fastest way to compute sin and cos together?
I would like to compute both the sine and co-sine of a value together (for example to create a rotation matrix). Of course I could compute them separately one after another like a = cos(x); b = sin(x); , but I wonder if there is a faster way when needing both values.
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How to dynamically build a JSON object with Python?
I am new to Python and I am playing with JSON data. I would like to dynamically build a JSON object by adding some key-value to an existing JSON object.
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How to resolve “Error: bad index – Fatal: index file corrupt” when using Git
After git init , I added and committed a few files, made some changes, added and committed. Set up the git daemon (running under Cygwin on WinXP) and cloned the repository once.
Now, I get this error with the cloned repository:
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How to access full source of old commit in BitBucket?
I can't figure out or find the documentation on how to access the source of an old commit in the new Bit Bucket format. Is this even possible anymore?
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MySQL combine two columns into one column
I'm trying to find a way to combine two columns into one, but keep getting the value '0' in the column instead to the combination of the words.
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Reordering of commits
I'm currently working on a branch and want some commits to merge into other branches:
5 Answers
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Filtering a list of strings based on contents
Given the list ['a','ab','abc','bac'] , I want to compute a list with strings that have 'ab' in them. I.e. the result is ['ab','abc'] . How can this be done in Python?
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What's the “average” requests per second for a production web application?
I have no frame of reference in terms of what's considered "fast"; I'd always wondered this but have never found a straight answer...
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Is there an ignore command for git like there is for svn?
I am a new user to git and I am starting a new project. I have a bunch of dot files that I would like to ignore. Is there an ignore command for git like there is for svn ?
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PHP server on local machine?
I'm trying to build a PHP site and I'm wanting to test my PHP files without uploading them to my host. Basically testing them on my own machine before I upload them. How do I do that?
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