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casinh, casinhf, casinhl - complex arc sine hyperbolic

#include<complex.h>doublecomplexcasinh(doublecomplexz);floatcomplexcasinhf(floatcomplexz);longdoublecomplexcasinhl(longdoublecomplexz);Link with-lm.

Thecasinh() function calculates the complex arc hyperbolic sine ofz. Ify=casinh(z), thenz=csinh(y). The imaginary part ofyis chosen in the interval [-pi/2,pi/2]. One has: casinh(z) = clog(z + csqrt(z * z + 1))

These functions first appeared in glibc in version 2.1.

C99.

asinh(3),cabs(3),cimag(3),complex(7)

This page is part of release 3.24 of the Linuxman-pagesproject. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. 2008-08-11