/sys$common/syshlp/helplib.hlb RTL Routines, MTH$, MTH$xCOSH  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    The Hyperbolic Cosine routine returns the hyperbolic cosine of
    the input value.

    Format

      MTH$COSH  floating-point-input-value

      MTH$DCOSH  floating-point-input-value

      MTH$GCOSH  floating-point-input-value

      Each of the above formats accepts one of the floating-point
      types as input.

  Additional Information (explode) :

• Returns
• Argument