github.com/MangoDowner/go-gm@v0.0.0-20180818020936-8baa2bd4408c/src/math/cmplx/abs.go (about)

     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.
     7  package cmplx
     8  
     9  import "math"
    10  
    11  // Abs returns the absolute value (also called the modulus) of x.
    12  func Abs(x complex128) float64 { return math.Hypot(real(x), imag(x)) }