Cant find log2() function?? - Programmers Heaven

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Cant find log2() function??

Hi


I was trying to compile some source codebut it requires the use of a function log2(). I can only find log() and log10(). If anybody knows where it is how how to do log2 of a variable i would reaaly appreciate any help.


Thanks

Scott


Comments

  • >If anybody knows where it is how how to do log2 of a variable i would reaaly appreciate any help.


    OOooooh, basic math *grin*. Remember kids,

    loga(b) equals logc(b)/logc(a) for any c.

    (kinda easy to proof, to).


    so just do a log(x)/log(2) and you should be fine, wether you use the 10-log or the natural log.





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