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COSH(3) 	       FreeBSD Library Functions Manual 	       COSH(3)

NAME
     cosh, coshf -- hyperbolic cosine functions

LIBRARY
     Math Library (libm, -lm)

SYNOPSIS
     #include <math.h>

     double
     cosh(double x);

     float
     coshf(float x);

DESCRIPTION
     The cosh() and the coshf() functions compute the hyperbolic cosine of x.

RETURN VALUES
     The cosh() and the coshf() functions return the hyperbolic cosine unless
     the magnitude of x is too large; in this event, the global variable errno
     is set to ERANGE.

SEE ALSO
     acos(3), asin(3), atan(3), atan2(3), cos(3), math(3), sin(3), sinh(3),
     tan(3), tanh(3)

STANDARDS
     The cosh() function conforms to ISO/IEC 9899:1990 (``ISO C89'').

FreeBSD 4.9			  May 2, 1991			   FreeBSD 4.9