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Source file src/pkg/math/cmplx/phase.go

     1	// Copyright 2010 The Go Authors. All rights reserved.
     2	// Use of this source code is governed by a BSD-style
     3	// license that can be found in the LICENSE file.
     4	
     5	package cmplx
     6	
     7	import "math"
     8	
     9	// Phase returns the phase (also called the argument) of x.
    10	// The returned value is in the range [-Pi, Pi].
    11	func Phase(x complex128) float64 { return math.Atan2(imag(x), real(x)) }
    12	

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