[SOLVED] <math.h> programming c

blackcobra · 2010-12-10 14:25:55

hey, having a bit of trouble here! a simple example would be:

#include <stdio.h>
#include <math.h>

main()
{
double k=2.33;
printf("%lf\n", sin(k));
}

when i compile this with gcc
i get an error, undefined ref to sin?
its seem not to be taking assigned arguments (???)

is there extra packages i need to download?
sorry, im new to arch..

Last edited by blackcobra (2010-12-10 14:40:50)

Allan · 2010-12-10 14:27:13

Add "-lm" to your gcc line.

blackcobra · 2010-12-10 14:31:55

thanks!! i forgot!

Last edited by blackcobra (2010-12-10 14:52:16)

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