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Tan(X)

Tan: `REAL`

function, the `KIND=`

value of the type being that of argument `X`.

`X`: `REAL`

; scalar; INTENT(IN).

Intrinsic groups: (standard FORTRAN 77).

Description:

Returns the tangent of `X`, an angle measured
in radians.

See ATan Intrinsic, for the inverse of this function.