21 lines
506 B
Go
21 lines
506 B
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
|
|
|
|
import "math"
|
|
|
|
// IsInf reports whether either real(x) or imag(x) is an infinity.
|
|
func IsInf(x complex128) bool {
|
|
if math.IsInf(real(x), 0) || math.IsInf(imag(x), 0) {
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
// Inf returns a complex infinity, complex(+Inf, +Inf).
|
|
func Inf() complex128 {
|
|
inf := math.Inf(1)
|
|
return complex(inf, inf)
|
|
}
|