Lahey/GNU Fortran

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8.239 TAN — Tangent function

Description:
TAN(X) computes the tangent of X.
Standard:
Fortran 77 and later, for a complex argument Fortran 2008 or later
Class:
Elemental function
Syntax:
RESULT = TAN(X)
Arguments:

X The type shall be REAL or COMPLEX.

Return value:
The return value has same type and kind as X.
Example:
          program test_tan
            real(8) :: x = 0.165_8
            x = tan(x)
          end program test_tan
     

Specific names:

Name Argument Return type Standard
TAN(X) REAL(4) X REAL(4) Fortran 95 and later
DTAN(X) REAL(8) X REAL(8) Fortran 95 and later

See also:
ATAN