csin man page

csin, csinf, csinl — complex sine function


#include <complex.h>

double complex csin(double complex z);
float complex csinf(float complex z);
long double complex csinl(long double complex z);

Link with -lm.


These functions calculate the complex sine of z.

The complex sine function is defined as:

csin(z) = (exp(i * z) - exp(-i * z)) / (2 * i)


These functions first appeared in glibc in version 2.1.


For an explanation of the terms used in this section, see attributes(7).

csin(), csinf(), csinl()Thread safetyMT-Safe

Conforming to

C99, POSIX.1-2001, POSIX.1-2008.

See Also

cabs(3), casin(3), ccos(3), ctan(3), complex(7)

Referenced By

casin(3), ccos(3), complex(7), ctan(3), sin(3).

Explore man page connections for csin(3).

csinf(3) and csinl(3) are aliases of csin(3).