1CASINH(3)                  Linux Programmer's Manual                 CASINH(3)
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NAME

6       casinh, casinhf, casinhl - complex arc sine hyperbolic
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SYNOPSIS

9       #include <complex.h>
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11       double complex casinh(double complex z);
12       float complex casinhf(float complex z);
13       long double complex casinhl(long double complex z);
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15       Link with -lm.
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DESCRIPTION

18       The  casinh() function calculates the complex arc hyperbolic sine of z.
19       If y = casinh(z), then z = csinh(y).  The imaginary part of y is chosen
20       in the interval [-pi/2,pi/2].
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22       One has:
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24           casinh(z) = clog(z + csqrt(z * z + 1))
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VERSIONS

27       These functions first appeared in glibc in version 2.1.
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CONFORMING TO

30       C99.
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SEE ALSO

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

36       This  page  is  part of release 3.22 of the Linux man-pages project.  A
37       description of the project, and information about reporting  bugs,  can
38       be found at http://www.kernel.org/doc/man-pages/.
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42                                  2008-08-11                         CASINH(3)
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