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// 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)
}