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 provides basic constants and mathematical functions for 6// complex numbers. 7package cmplx 8 9import "math" 10 11// Abs returns the absolute value (also called the modulus) of x. 12func Abs(x complex128) float64 { return math.Hypot(real(x), imag(x)) } 13