src/pkg/math/cmplx/rect.go - The Go Programming Language

Golang

Source file src/pkg/math/cmplx/rect.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	// Rect returns the complex number x with polar coordinates r, θ.
    10	func Rect(r, θ float64) complex128 {
    11		s, c := math.Sincos(θ)
    12		return complex(r*c, r*s)
    13	}