Date arithmetic in Unix shell scripts *

Question I need to do date arithmetic in Unix shell scripts that I use to control the execution of third party programs. I'm using ...

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What does the term "BODMAS" mean? *

Question What is BODMAS and why is it useful in programming? Answer http://www.easymaths.com/What_on_earth_is_Bodmas.htm : What do you...

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How to map a latitude/longitude to a distorted map? *

Question I have a bunch of latitude/longitude pairs that map to known x/y coordinates on a (geographically distorted) map. Then I have ...

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A little diversion into floating point (im)precision, part 1 *

Question Most mathematicians agree that: e πi + 1 = 0 However, most floating point implementations disagree. How well can we set...

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Solving a linear equation *

Question I need to programmatically solve a system of linear equations in C, Objective C, or (if needed) C++. Here's an example of ...

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