ATANH(3f)

DESCRIPTION
ATANH(X) computes the inverse hyperbolic tangent of X.

STANDARD
Fortran 2008 and later

CLASS
Elemental function

SYNTAX
RESULT = ATANH(X)

ARGUMENTS

X The type shall be REAL or COMPLEX.

RETURN VALUE
The return value has same type and kind as X. If X is complex, the imaginary part of the result is in radians and lies between -PI/2 <=q Im atanh(x) <=q PI/2.

EXAMPLE
          PROGRAM test_atanh
            REAL, DIMENSION(3) :: x = (/ -1.0, 0.0, 1.0 /)
            WRITE (*,*) ATANH(x)
          END PROGRAM

SPECIFIC NAMES

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

SEE ALSO
Inverse function: TANH

AUTHOR

This information was taken from the GFortran documentation (https://gcc.gnu.org/onlinedocs/gcc-5.3.0/gfortran/) and converted to a manpage by AstroFloyd (http://astrofloyd.org).