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csin(3) — Linux manual page

csin(3)                  Library Functions Manualcsin(3)

NAME        top

       csin, csinf, csinl - complex sine function

LIBRARY        top

       Math library (libm,-lm)

SYNOPSIS        top

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

DESCRIPTION        top

       These functions calculate the complex sine ofz.       The complex sine function is defined as:           csin(z) = (exp(i * z) - exp(-i * z)) / (2 * i)

ATTRIBUTES        top

       For an explanation of the terms used in this section, seeattributes(7).       ┌──────────────────────────────────────┬───────────────┬─────────┐       │Interface│Attribute│Value│       ├──────────────────────────────────────┼───────────────┼─────────┤       │csin(),csinf(),csinl()             │ Thread safety │ MT-Safe │       └──────────────────────────────────────┴───────────────┴─────────┘

STANDARDS        top

       C11, POSIX.1-2008.

HISTORY        top

       glibc 2.1.  C99, POSIX.1-2001.

SEE ALSO        top

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

COLOPHON        top

       This page is part of theman-pages (Linux kernel and C library       user-space interface documentation) project.  Information about       the project can be found at        ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report       for this manual page, see       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.       This page was obtained from the tarball man-pages-6.15.tar.gz       fetched from       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on       2025-08-11.  If you discover any rendering problems in this HTML       version of the page, or you believe there is a better or more up-       to-date source for the page, or you have corrections or       improvements to the information in this COLOPHON (which isnot       part of the original manual page), send a mail to       man-pages@man7.orgLinux man-pages 6.15            2025-05-17csin(3)

Pages that refer to this page:casin(3), ccos(3), ctan(3), sin(3), complex(7)

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