casinh(3) — Linux manual page

casinh(3)               Library Functions Manual               casinh(3)

NAME         top

       casinh, casinhf, casinhl - complex arc sine hyperbolic

LIBRARY         top

       Math library (libm, -lm)

SYNOPSIS         top

       #include <complex.h>

       double complex casinh(double complex z);
       float complex casinhf(float complex z);
       long double complex casinhl(long double complex z);

DESCRIPTION         top

       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))

ATTRIBUTES         top

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

       ┌──────────────────────────────────────┬───────────────┬─────────┐
       │Interface                             │ Attribute     │ Value   │
       ├──────────────────────────────────────┼───────────────┼─────────┤
       │casinh(), casinhf(), casinhl()        │ Thread safety │ MT-Safe │
       └──────────────────────────────────────┴───────────────┴─────────┘

STANDARDS         top

       C11, POSIX.1-2008.

HISTORY         top

       glibc 2.1.  C99, POSIX.1-2001.

SEE ALSO         top

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

Linux man-pages 6.04           2023-03-30                      casinh(3)

Pages that refer to this page: asinh(3),  csinh(3),  complex(7)

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