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Diffstat (limited to 'libgo/go/math/cmplx/rect.go')
-rw-r--r-- | libgo/go/math/cmplx/rect.go | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/libgo/go/math/cmplx/rect.go b/libgo/go/math/cmplx/rect.go new file mode 100644 index 0000000..bf94d78 --- /dev/null +++ b/libgo/go/math/cmplx/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 cmplx + +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) +} |