csin man page

#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).

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

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

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

The man pages csinf(3) and csinl(3) are aliases of csin(3).