What happened to trig functions in math.h?

[Shawn T. Rutledge]

It wasn't a link error, it was a compile error (cos function not defined).
And I grepped in /usr/include.  But I see it's in that bits/ subdirectory.
Now I'll have to see why including <math.h> as it already did, was not
enough.

On Wed, Jul 11, 2001 at 10:41:03PM -0700, Bob wrote:
> I believe cos is defined in mathcalss.h which is included by math.h.
> 
> If you are having difficulty linking, make sure you use -lm on your gcc 
> command line to link to the math library.

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