src/pkg/math/const.go

// Copyright 2009 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.

// The math package provides basic constants and mathematical functions.
package math

// Mathematical constants.
// Reference: http://www.research.att.com/~njas/sequences/Axxxxxx
const (
	E	= 2.71828182845904523536028747135266249775724709369995957496696763;  // A001113
	Pi	= 3.14159265358979323846264338327950288419716939937510582097494459;  // A000796
	Phi	= 1.61803398874989484820458683436563811772030917980576286213544862;  // A001622

	Sqrt2	= 1.41421356237309504880168872420969807856967187537694807317667974;  // A002193
	SqrtE	= 1.64872127070012814684865078781416357165377610071014801157507931;  // A019774
	SqrtPi	= 1.77245385090551602729816748334114518279754945612238712821380779;  // A002161
	SqrtPhi	= 1.27201964951406896425242246173749149171560804184009624861664038;  // A139339

	Ln2	= 0.693147180559945309417232121458176568075500134360255254120680009; // A002162
	Log2E	= 1/Ln2;
	Ln10	= 2.30258509299404568401799145468436420760110148862877297603332790;  // A002392
	Log10E	= 1/Ln10;
)

// BUG(rsc): The manual should define the special cases for all of these functions.