DragonFly On-Line Manual Pages

CCOS(3) 	      DragonFly Library Functions Manual	       CCOS(3)

NAME

ccos, ccosf, ccosl -- complex circular cosine

SYNOPSIS

#include <complex.h> double complex ccos(double complex z); float complex ccosf(float complex z); long double complex ccosl(long double complex z);

DESCRIPTION

The ccos(), ccosf() and ccosl() functions compute the complex circular cosine of z. If z = x + iy, then ccos(z) = cos(x) cosh(y) - i sin(x) sinh(y).

RETURN VALUES

The ccos(), ccosf() and ccosl() functions return the complex circular cosine of z.

SEE ALSO

csin(3), ctan(3)

STANDARDS

The ccos(), ccosf() and ccosl() functions conform to ISO/IEC 9899:1999 (``ISO C99''). DragonFly 4.3 June 5, 2013 DragonFly 4.3