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Using and Porting GNU Fortran

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8.11.9.5 ACos Intrinsic

 
ACos(X)

ACos: 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 arc-cosine (inverse cosine) of X in radians.

See section 8.11.9.46 Cos Intrinsic, for the inverse of this function.


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