6.19 ASINH — Hyperbolic arcsine function

Description:

ASINH(X) computes the hyperbolic arcsine of X (inverse of SINH(X)).

Standard:

GNU extension

Class:

Elemental function

Syntax:

RESULT = ASINH(X)

Arguments:

X	The type shall be REAL(*), with X a real number.

Return value:

The return value is of type REAL(*) and it lies in the range -\infty \leq \asinh (x) \leq \infty.

Example:

          PROGRAM test_asinh
            REAL(8), DIMENSION(3) :: x = (/ -1.0, 0.0, 1.0 /)
            WRITE (*,*) ASINH(x)
          END PROGRAM
     

Specific names:

Name	Argument	Return type	Standard
DASINH(X)	REAL(8) X	REAL(8)	GNU extension.

See also:

Inverse function: SINH