go abs 源码
golang abs 代码
文件路径：/src/math/cmplx/abs.go
// 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. Special case handling conforms to the C99 standard
// Annex G IEC 60559-compatible complex arithmetic.
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)) }
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