aboutsummaryrefslogtreecommitdiff
path: root/libgo/go/math/cmplx/abs.go
diff options
context:
space:
mode:
authorIan Lance Taylor <ian@gcc.gnu.org>2011-12-07 01:11:29 +0000
committerIan Lance Taylor <ian@gcc.gnu.org>2011-12-07 01:11:29 +0000
commit9c63abc9a1d127f95162756467284cf76b47aff8 (patch)
tree84f27a6ab44d932e4b0455f18390b070b4de626e /libgo/go/math/cmplx/abs.go
parent374280238f934fa851273e2ee16ba53be890c6b8 (diff)
downloadgcc-9c63abc9a1d127f95162756467284cf76b47aff8.zip
gcc-9c63abc9a1d127f95162756467284cf76b47aff8.tar.gz
gcc-9c63abc9a1d127f95162756467284cf76b47aff8.tar.bz2
libgo: Update to weekly 2011-11-09.
From-SVN: r182073
Diffstat (limited to 'libgo/go/math/cmplx/abs.go')
-rw-r--r--libgo/go/math/cmplx/abs.go12
1 files changed, 12 insertions, 0 deletions
diff --git a/libgo/go/math/cmplx/abs.go b/libgo/go/math/cmplx/abs.go
new file mode 100644
index 0000000..f3cd107
--- /dev/null
+++ b/libgo/go/math/cmplx/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 cmplx provides basic constants and mathematical functions for
+// complex numbers.
+package cmplx
+
+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)) }