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

   │InterfaceAttributeValue   │
   │casinh(), casinhf(), casinhl() │ Thread safety │ MT-Safe │


   C99, POSIX.1-2001, POSIX.1-2008.


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


   This page is part of release 4.09 of the Linux  man-pages  project.   A
   description  of  the project, information about reporting bugs, and the
   latest    version    of    this    page,    can     be     found     at

                              2015-04-19                         CASINH(3)

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