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Using and Porting GNU Fortran

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8.11.9.26 ATan2 Intrinsic

 
ATan2(Y, X)

ATan2: REAL function, the exact type being the result of cross-promoting the types of all the arguments.

Y: REAL; scalar; INTENT(IN).

X: REAL; scalar; INTENT(IN).

Intrinsic groups: (standard FORTRAN 77).

Description:

Returns the arc-tangent (inverse tangent) of the complex number (Y, X) in radians.

See section 8.11.9.243 Tan Intrinsic, for the inverse of this function.


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