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30 lines
931 B
Go
30 lines
931 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 cephes implements functions originally in the Netlib code by Stephen Mosher.
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package cephes // import "gonum.org/v1/gonum/mathext/internal/cephes"
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import "math"
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/*
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Additional copyright information:
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Code in this package is adapted from the Cephes library (http://www.netlib.org/cephes/).
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There is no explicit licence on Netlib, but the author has agreed to a BSD release.
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See https://github.com/deepmind/torch-cephes/blob/master/LICENSE.txt and
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https://lists.debian.org/debian-legal/2004/12/msg00295.html
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*/
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var (
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badParamOutOfBounds = "cephes: parameter out of bounds"
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badParamFunctionSingularity = "cephes: function singularity"
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)
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const (
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machEp = 1.0 / (1 << 53)
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maxLog = 1024 * math.Ln2
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minLog = -1075 * math.Ln2
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maxIter = 2000
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)
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