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9.2

Need a pow() function without math.h

Asked by tknudsen-qec in C Programming Language, Algorithms

Tags: C, functions

I'm tweaking a program that requires that I raise an integer to the power of a fraction: 3 ^ 1.4, etc.

The problem is that I cannot use the standard math.h pow() function as I'm having too many difficulties trying to include the library (there are function-name conflicts, particularly with "log", and I don't have leave to go and change all the conflicting function names in this program)

I made a bona-fide effort to rip the pow() function right out of the math.h library but eventually gave up.  (the math.h pow #define actually references itself as a parameter...as far as I can tell...neat)

Is there a custom-made pow() function that handles exponential powers I can use? I don't particularly care if it only returns integers (if it matters).  Alternately, if someone smarter than I has taken or can successfully export the standard version for use I'd be terribly pleased.

Thanks kindly
[+][-]09/24/09 12:37 PM, ID: 25416936Accepted Solution

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Zones: C Programming Language, Algorithms
Tags: C, functions
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Solution Provided By: Infinity08
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Solution Grade: A
 
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