libgo/go/math/cmplx/polar.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 // Polar returns the absolute value r and phase θ of x,
   8 // such that x = r * e**θi.
   9 // The phase is in the range [-Pi, Pi].
  10 func Polar(x complex128) (r, θ float64) {
  11         return Abs(x), Phase(x)
  12 }