cc [ flags ] -I/usr/local/include file(s) -L/usr/local/lib -lmcw [ ... ] #include <mathcw.h> extern float atanf (float x); extern double atan (double x); extern long double atanl (long double x); extern __float80 atanw (__float80 x); extern __float128 atanq (__float128 x); extern long_long_double atanll (long_long_double x); extern decimal_float atandf (decimal_float x); extern decimal_double atand (decimal_double x); extern decimal_long_double atandl (decimal_long_double x); extern decimal_long_long_double atandll (decimal_long_long_double x);
NB: Functions with prototypes containing underscores in type names may be available only with certain extended compilers.