math.h -- Header File

Declare mathematics functions
#include <math.h>

math.h is  the header  file to  be included with  programs that use  any of
COHERENT's  mathematics routines.  It  includes the  following: definitions
for  mathematical functions;  error  return values,  as used  by the  errno
function;  definitions  of  mathematical  constants,  e.g.,  HUGE_VAL;  the
definition of structure cpx, which describes complex variables; definitions
of   internal  compiler   functions;  and,   finally,  prototypes   of  all
mathematical functions.

See Also

header files,
libm
ANSI Standard §7.5

© 2012 by Stephen A. Ness