From 5ff4c17907d5b19510a62e08fd8d3b11e62b431d Mon Sep 17 00:00:00 2001 From: Ondřej Surý Date: Tue, 13 Sep 2011 13:13:40 +0200 Subject: Imported Upstream version 60 --- src/pkg/cmath/rect.go | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 src/pkg/cmath/rect.go (limited to 'src/pkg/cmath/rect.go') diff --git a/src/pkg/cmath/rect.go b/src/pkg/cmath/rect.go new file mode 100644 index 000000000..b955f0bf7 --- /dev/null +++ b/src/pkg/cmath/rect.go @@ -0,0 +1,13 @@ +// 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 complex(r*c, r*s) +} -- cgit v1.2.3