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CASINH(3)		   Linux Programmers Manual		    CASINH(3)



NAME
       casinh, casinhf, casinhl - complex arc sine hyperbolic

SYNOPSIS
       #include 

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

       Link with -lm.

DESCRIPTION
       The  casinh() function calculates 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))

CONFORMING TO
       C99.

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

COLOPHON
       This  page  is  part of release 3.05 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.



				  2007-12-26			     CASINH(3)




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