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5f0141ca4c
Changes made in dsp/fourier/internal/fftpack break the formatting used there, so these are reverted. There will be complaints in CI. [git-generate] gofmt -w . go generate gonum.org/v1/gonum/blas go generate gonum.org/v1/gonum/blas/gonum go generate gonum.org/v1/gonum/unit go generate gonum.org/v1/gonum/unit/constant go generate gonum.org/v1/gonum/graph/formats/dot go generate gonum.org/v1/gonum/graph/formats/rdf go generate gonum.org/v1/gonum/stat/card git checkout -- dsp/fourier/internal/fftpack
23 lines
752 B
Go
23 lines
752 B
Go
// Copyright ©2016 The Gonum 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 mathext
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import "gonum.org/v1/gonum/mathext/internal/cephes"
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// Zeta computes the Riemann zeta function of two arguments.
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//
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// Zeta(x,q) = \sum_{k=0}^{\infty} (k+q)^{-x}
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//
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// Note that Zeta returns +Inf if x is 1 and will panic if x is less than 1,
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// q is either zero or a negative integer, or q is negative and x is not an
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// integer.
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//
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// See http://mathworld.wolfram.com/HurwitzZetaFunction.html
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// or https://en.wikipedia.org/wiki/Multiple_zeta_function#Two_parameters_case
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// for more detailed information.
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func Zeta(x, q float64) float64 {
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return cephes.Zeta(x, q)
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}
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