CSIN(3) Library Functions Manual CSIN(3)

csin, csinf, csinl - complex sine function

Math library (libm, -lm)

#include <complex.h>
double complex csin(double complex z);
float complex csinf(float complex z);
long double complex csinl(long double complex z);

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).

Interface Attribute Value
csin (), csinf (), csinl () Thread safety MT-Safe

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

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

2022-10-09 Linux man-pages 6.01