sinh(3)                             CLIX                             sinh(3)



  NAME

    sinh, cosh, tanh - Hyperbolic functions

  LIBRARY

    Standard Math Library (libm.a)

    Intergraph Math Library (libmath.a)

  SYNOPSIS

    #include <math.h>

    double sinh(
      double x );

    double cosh(
      double x );

    double tanh(
      double x );

  PARAMETERS

    x   An argument of type double.

  DESCRIPTION

    The sinh(), cosh(), and tanh() hyperbolic functions return, respectively,
    the hyperbolic sine, cosine and tangent of their argument.

  RETURN VALUES

    The sinh() and cosh() hyperbolic functions return HUGE (and sinh() may
    return -HUGE for negative x) when the correct value overflows and sets
    errno to ERANGE.

  ERRORS

    The error-handling procedures discussed under RETURN VALUES may be changed
    by using the matherr(3) function.

  RELATED INFORMATION

    Functions: matherr(3)








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