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22 lines
506 B
Go
22 lines
506 B
Go
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// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package cmplx
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import "math"
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// IsInf returns true if either real(x) or imag(x) is an infinity.
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func IsInf(x complex128) bool {
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if math.IsInf(real(x), 0) || math.IsInf(imag(x), 0) {
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return true
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}
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return false
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}
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// Inf returns a complex infinity, complex(+Inf, +Inf).
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func Inf() complex128 {
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inf := math.Inf(1)
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return complex(inf, inf)
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}
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