Imported Upstream version 60upstream/60

1 files changed, 12 insertions, 0 deletions

diff --git a/src/pkg/cmath/abs.go b/src/pkg/cmath/abs.go
new file mode 100644
index 000000000..f3199cad5
--- /dev/null
+++ b/src/pkg/cmath/abs.go
@@ -0,0 +1,12 @@
+// 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 provides basic constants and mathematical functions for
+// complex numbers.
+package cmath
+
+import "math"
+
+// Abs returns the absolute value (also called the modulus) of x.
+func Abs(x complex128) float64 { return math.Hypot(real(x), imag(x)) }