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I.4.9.4 Extractions from Complex Results

Four methods produce Real Results from Complex Results by extracting the appropriate components:

These methods must be called on Complex Results. The polar or rectangular format of the Complex Results does not matter: if needed a polar-rectangular conversion of the components is done before the extraction.

The two methods “getR” and “getI” may have an optional Real argument that corresponds to a rotation applied to the Result before extracting the Real or Imaginary component Result. More precisely, each component of each value is multiplied by eiθ before extracting the real or imaginary component. Angle θ is always given in . Note that the Result on which the method is called is left unmodified.