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CSIN(3) Linux Programmer's Manual CSIN(3)
NAME
csin, csinf, csinl - complex sine function
SYNOPSIS
#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.
DESCRIPTION
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)
VERSIONS
These functions first appeared in glibc in version 2.1.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
┌──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┼───────────────┼─────────┤
│csin(), csinf(), csinl() │ Thread safety │ MT-Safe │
└──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┴───────────────┴─────────┘
CONFORMING TO
C99, POSIX.1-2001, POSIX.1-2008.
SEE ALSO
cabs(3), casin(3), ccos(3), ctan(3), complex(7)
2021-03-22 CSIN(3)