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Source file src/math/cmplx/isinf.go

Documentation: math/cmplx

     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
     6  
     7  import "math"
     8  
     9  // IsInf returns true if either real(x) or imag(x) is an infinity.
    10  func IsInf(x complex128) bool {
    11  	if math.IsInf(real(x), 0) || math.IsInf(imag(x), 0) {
    12  		return true
    13  	}
    14  	return false
    15  }
    16  
    17  // Inf returns a complex infinity, complex(+Inf, +Inf).
    18  func Inf() complex128 {
    19  	inf := math.Inf(1)
    20  	return complex(inf, inf)
    21  }
    22  

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