math

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Pow(NaN, 0) returns an incorrect value

#66338 opened 1 month ago by jackvonhouse

math.E returns incorrect resultNeedsInvestigation

#66198 opened 1 month ago by EvilRedHorse

`tan(math.Pi / 4)` returns different values on amd64 vs arm64

#65337 opened 2 months ago by Defined2014

implement generics for Abs function to include float32Proposal

#64871 opened 4 months ago by gonzalochief

Different downcast behavior depending on platform

#64444 opened 4 months ago by nseba

when use math.Modf get frac then conver int/int64 is inaccurate

#62232 opened 8 months ago by conero

add Bool(bool) intProposal

#61915 opened 8 months ago by jimmyfrasche

MaxFloat32/64 and SmallestNonzeroFloat32/64 value comments misleading

#61230 opened 9 months ago by extemporalgenome

portable FMA implementation incorrectly returns -0 in some situationsNeedsFix

#61130 opened 9 months ago by mundaym

overflow detecting arithmeticProposal

#60858 opened 10 months ago by Verseth

document that Min()/Max() don't agree with builtin min()/max()DocumentationNeedsFix

#60616 opened 10 months ago by crisman

remove Compare, Compare32ProposalProposal-Acceptedrelease-blocker

#60519 opened 11 months ago by rsc

integer square rootProposal

#59861 opened 1 year ago by chiyoi

TestCompare failuresFrozenDueToAgeNeedsInvestigation

#58468 opened 1 year ago by gopherbot

use generics.FrozenDueToAgeProposal

#58148 opened 1 year ago by gucio321

add Clamp functionFrozenDueToAgeProposal

#58146 opened 1 year ago by gucio321

Pow(negativeZero, number_that_overflows_int64) produces incorrect result on arm64FrozenDueToAgeNeedsInvestigationOS-Darwinarch-arm64

#57465 opened 1 year ago by dop251

add Compare and Compare32ProposalProposal-Accepted

#56491 opened 2 years ago by zhangyunhao116

show values of MaxXxx and MinXxx on documentation DocumentationFrozenDueToAgeNeedsInvestigation

#51282 opened 2 years ago by shuLhan

add IterFrozenDueToAgeProposal

#44394 opened 3 years ago by carnott-snap

Type Conversion of Inf(1) to int produces a negative integer instead of a positive oneFrozenDueToAge

#44225 opened 3 years ago by BozeBro

math.SmallestNonzeroFloat64 is not sufficiently precise, leading to unexpected resultsFrozenDueToAgeNeedsFix

#44058 opened 3 years ago by griesemer

math.Floor bugged on products of certain float64 numbersFrozenDueToAge

#41283 opened 3 years ago by Baltan00

add Tau in constantsFrozenDueToAgeProposal

#40663 opened 3 years ago by roipoussiere

MaxUint64 doesn't return correct result but an error?FrozenDueToAgeWaitingForInfo

#38723 opened 4 years ago by IIvyPy

Sin(Pi) and Cos(Pi/2) should return 0 but don'tFrozenDueToAge

#38039 opened 4 years ago by caivs

trigonometry still wrong for huge argumentsFrozenDueToAge

#37839 opened 4 years ago by nsajko

FMA is slower than non-FMA calculationFrozenDueToAge

#36196 opened 4 years ago by mattn

discrepancy in Atan2 special caseFrozenDueToAgeNeedsDecision

#35446 opened 4 years ago by bmkessler

inconsistent conversion from NaN to int on js/wasmFrozenDueToAgeNeedsInvestigationarch-wasm

#35034 opened 4 years ago by ktye

make benchmark iterations more data-dependentFrozenDueToAge

#33441 opened 4 years ago by smasher164

Remainder(-1,1) returns 0 instead of -0 (as IEEE 754 requires)FrozenDueToAgeNeedsFix

#30814 opened 5 years ago by dr2chase

Log1p may not be quite correctFrozenDueToAgeNeedsInvestigation

#29488 opened 5 years ago by omion

argument reduction inaccurate on s390x for huge inputs for Sin/Cos/SinCos/TanNeedsFixarch-s390x

#29240 opened 5 years ago by griesemer

new 'huge' trig tests failing on s390xFrozenDueToAgerelease-blocker

#29221 opened 5 years ago by mundaym

add MaxUint, MinInt, MaxIntFrozenDueToAgeProposalProposal-Accepted

#28538 opened 5 years ago by Silentd00m

package refactoringFrozenDueToAge

#28490 opened 5 years ago by petar-dambovaliev

Sqrt() can generate invalid byte code for wasmFrozenDueToAgeNeedsInvestigationarch-wasm

#27961 opened 5 years ago by justinclift

docs omit mention of IEEE 754 endiannessDocumentationFrozenDueToAgeNeedsFixhelp wanted

#27736 opened 5 years ago by seebs

add `IsDivisible(float64, float64) bool`FrozenDueToAgeProposal

#26181 opened 5 years ago by AyushG3112

add guaranteed FMAFeatureRequestFrozenDueToAgeNeedsFixProposal-Acceptedhelp wanted

#25819 opened 5 years ago by TuomLarsen

Add Euler-Mascheroni constantFrozenDueToAgeProposalProposal-Declined

#24759 opened 6 years ago by caivs

Make -integer special cases for Gamma and Lgamma consistentFrozenDueToAgeProposal

#24757 opened 6 years ago by caivs

add more special functionsFrozenDueToAgeProposalWaitingForInfo

#24241 opened 6 years ago by caivs

Sqrt not intrinsified on mips64FrozenDueToAgePerformance

#24006 opened 6 years ago by ALTree

Round returns an int in a float64FrozenDueToAge

#23496 opened 6 years ago by Fale

Ldexp doesn't handle denormals correctlyFrozenDueToAgeNeedsFix

#23407 opened 6 years ago by crvv

wrong result for Pow(±0, .5) contrary to documentationDocumentationFrozenDueToAge

#23224 opened 6 years ago by majnemer

Exp(x) function on amd64 can not return denormal numbersFrozenDueToAgeNeedsFix

#23164 opened 6 years ago by erifan

uint assignment overflow but compile doesn't report error.FrozenDueToAge

#23163 opened 6 years ago by mnhkahn

Go 2: use explicit types for limit constantsFrozenDueToAgeProposalProposal-Declinedv2

#23087 opened 6 years ago by ianlancetaylor

MaxInt64 overflows int on ARMFrozenDueToAge

#23086 opened 6 years ago by mathuin

consider removing Dim assembly (and possibly Max/Min too)FrozenDueToAge

#21913 opened 6 years ago by mundaym

use Abs rather than if x < 0 { x = -x }FrozenDueToAgehelp wanted

#21812 opened 6 years ago by mundaym

rand: not random. #21771FrozenDueToAge

#21774 opened 6 years ago by jeffkayser2

rand: not random.FrozenDueToAge

#21771 opened 6 years ago by jeffkayser2

consider adding IEEE TiesToEven rounding to math packageFrozenDueToAgeNeedsFix

#21748 opened 6 years ago by mpx

improve performance for some math functions for ppc64xFrozenDueToAgePerformance

#21390 opened 6 years ago by laboger

make the constants typedFrozenDueToAge

#21228 opened 6 years ago by chmllr

Exp(1.0) returns different values on amd64 vs arm64FrozenDueToAgeNeedsFixrelease-blocker

#20319 opened 7 years ago by tamird

add RoundFrozenDueToAgeProposalProposal-Accepted

#20100 opened 7 years ago by DavidR91

add deg <-> rad conversion constantsFrozenDueToAgeProposalProposal-Declined

#19587 opened 7 years ago by Niondir

add tests for corner cases of Yn Bessel functionFrozenDueToAgehelp wanted

#19130 opened 7 years ago by griesemer

exp sometimes returns wrong values on overflow on amd64FrozenDueToAgeNeedsFix

#18912 opened 7 years ago by ALTree

minor error in Bessel function documentationDocumentationFrozenDueToAge

#18823 opened 7 years ago by IsaacDunlap

tan function returns different results depending on platformDocumentationFrozenDueToAge

#18354 opened 7 years ago by deafgoat

add an IsAlmostEqual functionFrozenDueToAgeProposal

#17675 opened 7 years ago by johnrs

math on 387 does not match float64 due to extended exponentsFrozenDueToAge

#17357 opened 7 years ago by rsc

calls to math.Sqrt not inlined when called from other math pkg functionsFrozenDueToAgeNeedsFix

#17354 opened 7 years ago by laboger

improve performance for math.Floor, math.Ceil, math.Trunc with asm on ppc64xFrozenDueToAge

#17185 opened 7 years ago by laboger

add exported variables +Inf, -Inf, +0, -0 FeatureRequestProposal

#17063 opened 7 years ago by xiofen

Document behavior of math.CeilFrozenDueToAge

#15931 opened 8 years ago by kevinburkeshyp

exp returns 0 instead of infinity for large valuesFrozenDueToAge

#14932 opened 8 years ago by btracey

Poor performance for math.Sqrt on ppc64le/ppc64FrozenDueToAge

#14349 opened 8 years ago by laboger

It would be nice if the math.Min and math.Max functions accepted a variadic paramFrozenDueToAge

#14246 opened 8 years ago by watzon

Expm1(x) is off by 1 for values of x around [14, 34]FrozenDueToAge

#13101 opened 8 years ago by mdempsky

pure go version of math.Sqrt is brokenFrozenDueToAge

#13013 opened 8 years ago by hydroflame

Modf error with negative zeroFrozenDueToAge

#12867 opened 8 years ago by ssilverman

Lack round functionFrozenDueToAge

#12723 opened 8 years ago by yuyi98

Expm1(x) returns +Inf not -1 when x < -709FrozenDueToAge

#11442 opened 8 years ago by ncw

Gamma(x) for -ve half integral values < -170.5 returns +Inf not 0FrozenDueToAge

#11441 opened 8 years ago by ncw

Max(NaN, x) may return x instead of NaN (depending on the bit representation of NaN)FrozenDueToAge

#9919 opened 9 years ago by barnex

math.Log returns incorrect resultFrozenDueToAge

#9546 opened 9 years ago by ALTree

math.Asinh returns incorrect resultFrozenDueToAge

#9545 opened 9 years ago by ALTree

Int.ProbablyPrime is slow for even integersFrozenDueToAge

#9269 opened 9 years ago by ALTree

all_test.go: test failures in TestLog2 on ppc64 (and s390)FrozenDueToAge

#9066 opened 9 years ago by gopherbot

math.Hypot returns incorrect resultFrozenDueToAge

#8909 opened 9 years ago by gopherbot

dead link in documentationFrozenDueToAge

#8790 opened 9 years ago by gopherbot

Sincos is very wrong when called from PortAudio callback.FrozenDueToAge

#8623 opened 9 years ago by gordonklaus

Documentation contains a broken linkFrozenDueToAge

#8556 opened 9 years ago by stephens2424

Calls to math.Sin and math.Cos with values > 1e17 return values outside of [-1,1] FrozenDueToAge

#8526 opened 9 years ago by gopherbot

missing Nextafter32FrozenDueToAge

#8117 opened 10 years ago by griesemer

Pow(x,y) fails for large values of yFrozenDueToAgeNeedsFixrelease-blocker

#7394 opened 10 years ago by gopherbot

Sin returns value not in [-1, 1] for very large valuesFrozenDueToAge

#7110 opened 10 years ago by gopherbot

trigonometric argument reduction fails for huge argumentsFrozenDueToAge

#6794 opened 10 years ago by lexprfuncall

documentation of trigonometric functions doesn't specify if they operate in radians or degreesFrozenDueToAge

#6543 opened 10 years ago by kisielk

add inverse error functionFrozenDueToAgeProposalProposal-Acceptedhelp wantedrelease-blocker

#6359 opened 10 years ago by btracey

add a Round function

#4594 opened 11 years ago by gopherbot

the error of log2(8) is 4.44e-16 which seems too largeFrozenDueToAge

#4567 opened 11 years ago by griesemer

Different results using x86 and x64 versions of Go 1FrozenDueToAgeUnfortunate

#3423 opened 12 years ago by gopherbot

Gamma(x) special cases are wrongFrozenDueToAge

#2977 opened 12 years ago by robpike

APIFrozenDueToAge

#2940 opened 12 years ago by rsc

floating point epsilon constantFrozenDueToAge

#966 opened 13 years ago by rsc

Add float32 versions of functions (cosf, sinf, fminf, ...)FrozenDueToAge

#725 opened 14 years ago by nico