ArgComplex function

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Please see https://aka.ms/qdk.api for the API documentation for the Modern QDK.

Namespace: Microsoft.Quantum.Math

Package: Microsoft.Quantum.Standard

Returns the phase of a complex number of type Complex.

function ArgComplex (input : Microsoft.Quantum.Math.Complex) : Double

Input

input : Complex

Complex number $c = x + i y$.

Output : Double

Phase $\text{Arg}[c] = \text{ArcTan}(y,x) \in (-\pi,\pi]$.