// Copyright 2010 The Go Authors. All rights reserved. | |
// Use of this source code is governed by a BSD-style | |
// license that can be found in the LICENSE file. | |
package cmath | |
import "math" | |
// Rect returns the complex number x with polar coordinates r, θ. | |
func Rect(r, θ float64) complex128 { | |
s, c := math.Sincos(θ) | |
return cmplx(r*c, r*s) | |
} |