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CASINH(3) Linux Programmer's Manual CASINH(3)
casinh, casinhf, casinhl - complex arc sine hyperbolic
#include <complex.h> double complex casinh(double complex z); float complex casinhf(float complex z); long double complex casinhl(long double complex z); Link with -lm.
These functions calculate the complex arc hyperbolic sine of z. If y = casinh(z), then z = csinh(y). The imaginary part of y is 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.
For an explanation of the terms used in this section, see attributes(7). ┌──────────────────────────────────────┬───────────────┬─────────┐ │Interface │ Attribute │ Value │ ├──────────────────────────────────────┼───────────────┼─────────┤ │casinh(), casinhf(), casinhl() │ Thread safety │ MT-Safe │ └──────────────────────────────────────┴───────────────┴─────────┘
C99, POSIX.1-2001, POSIX.1-2008.
asinh(3), cabs(3), cimag(3), csinh(3), complex(7)
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2021-03-22 CASINH(3)
Pages that refer to this page: asinh(3), csinh(3), complex(7)
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