carta
ccosf(3)

ccosf3

Complex cosine function

Part of ccos(3).

Usage

double complex ccos(double complex z); float complex ccosf(float complex z); long double complex ccosl(long double complex z);

Library

Math library (libm, -lm)

Overview

These functions calculate the complex cosine of z.

The complex cosine function is defined as:

ccos(z) = (exp(i * z) + exp(-i * z)) / 2

Attributes

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

InterfaceAttributeValue
ccos(), ccosf(), ccosl()Thread safetyMT-Safe

History

  • Arch Linux 2026-11-01: the text shown here
  • Debian 13 (Trixie)
  • Debian 12 (Bookworm)
  • Debian 11 (Bullseye)
  • Debian 10 (Buster)
  • Debian 9 (Stretch)
  • Debian 8 (Jessie)
  • Debian 7 (Wheezy)
  • Debian 6.0 (Squeeze)
  • Debian 5.0 (Lenny)
  • Debian 4.0 (Etch)
  • Debian 3.1 (Sarge)

Standards

C11, POSIX.1-2008.

History

glibc 2.1. C99, POSIX.1-2001.

From man-pages 6.19-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.