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ATANH
— Inverse hyperbolic tangent functionATANH(X)
computes the inverse hyperbolic tangent of X.
Fortran 2008 and later
Elemental function
RESULT = ATANH(X)
X | The type shall be REAL or COMPLEX . |
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 \leq \Im \atanh(x) \leq \pi/2.
PROGRAM test_atanh REAL, DIMENSION(3) :: x = (/ -1.0, 0.0, 1.0 /) WRITE (*,*) ATANH(x) END PROGRAM
Name | Argument | Return type | Standard |
DATANH(X) | REAL(8) X | REAL(8) | GNU extension |
Inverse function: TANH