polys: speed improvements in modulargcd
polys: speed improvements in modulargcd

In _modgcd_multivariate_p unlucky evaluation points are now detected
earlier.
garvitr/sympy,Titan-C/sympy,VaibhavAgarwalVA/sympy,sahmed95/sympy,lindsayad/sympy,madan96/sympy,sunny94/temp,Designist/sympy,dqnykamp/sympy,yukoba/sympy,oliverlee/sympy,rahuldan/sympy,Sumith1896/sympy,saurabhjn76/sympy,ChristinaZografou/sympy,abhiii5459/sympy,Shaswat27/sympy,yukoba/sympy,Shaswat27/sympy,ChristinaZografou/sympy,grevutiu-gabriel/sympy,Arafatk/sympy,Shaswat27/sympy,meghana1995/sympy,MridulS/sympy,mcdaniel67/sympy,debugger22/sympy,jaimahajan1997/sympy,kumarkrishna/sympy,souravsingh/sympy,toolforger/sympy,shikil/sympy,madan96/sympy,postvakje/sympy,sahmed95/sympy,abhiii5459/sympy,yashsharan/sympy,Arafatk/sympy,bukzor/sympy,MridulS/sympy,atsao72/sympy,AkademieOlympia/sympy,farhaanbukhsh/sympy,jbbskinny/sympy,cswiercz/sympy,shipci/sympy,sahilshekhawat/sympy,garvitr/sympy,dqnykamp/sympy,ChristinaZografou/sympy,AunShiLord/sympy,liangjiaxing/sympy,shipci/sympy,sunny94/temp,kumarkrishna/sympy,Vishluck/sympy,kaushik94/sympy,Sumith1896/sympy,saurabhjn76/sympy,Davidjohnwilson/sympy,atsao72/sympy,Curious72/sympy,VaibhavAgarwalVA/sympy,kumarkrishna/sympy,wanglongqi/sympy,Curious72/sympy,kmacinnis/sympy,sahilshekhawat/sympy,kaushik94/sympy,Arafatk/sympy,garvitr/sympy,debugger22/sympy,skirpichev/omg,AkademieOlympia/sympy,postvakje/sympy,hargup/sympy,oliverlee/sympy,shikil/sympy,wanglongqi/sympy,aktech/sympy,asm666/sympy,Curious72/sympy,MechCoder/sympy,hrashk/sympy,jaimahajan1997/sympy,chaffra/sympy,farhaanbukhsh/sympy,asm666/sympy,Mitchkoens/sympy,sampadsaha5/sympy,abloomston/sympy,kevalds51/sympy,pandeyadarsh/sympy,abhiii5459/sympy,sunny94/temp,atreyv/sympy,jamesblunt/sympy,kaichogami/sympy,oliverlee/sympy,ga7g08/sympy,VaibhavAgarwalVA/sympy,jerli/sympy,kaushik94/sympy,AunShiLord/sympy,sahmed95/sympy,skidzo/sympy,Gadal/sympy,chaffra/sympy,pbrady/sympy,aktech/sympy,debugger22/sympy,atsao72/sympy,mafiya69/sympy,Vishluck/sympy,yashsharan/sympy,vipulroxx/sympy,sampadsaha5/sympy,MridulS/sympy,cswiercz/sympy,iamutkarshtiwari/sympy,AkademieOlympia/sympy,maniteja123/sympy,grevutiu-gabriel/sympy,postvakje/sympy,pbrady/sympy,Gadal/sympy,yashsharan/sympy,toolforger/sympy,kevalds51/sympy,bukzor/sympy,cccfran/sympy,Gadal/sympy,hargup/sympy,farhaanbukhsh/sympy,vipulroxx/sympy,hrashk/sympy,chaffra/sympy,beni55/sympy,jerli/sympy,abloomston/sympy,jbbskinny/sympy,Titan-C/sympy,Sumith1896/sympy,sampadsaha5/sympy,Titan-C/sympy,dqnykamp/sympy,moble/sympy,beni55/sympy,jerli/sympy,saurabhjn76/sympy,vipulroxx/sympy,cswiercz/sympy,hrashk/sympy,Vishluck/sympy,aktech/sympy,mafiya69/sympy,emon10005/sympy,meghana1995/sympy,cccfran/sympy,madan96/sympy,atreyv/sympy,mcdaniel67/sympy,ahhda/sympy,Davidjohnwilson/sympy,Mitchkoens/sympy,wyom/sympy,diofant/diofant,hargup/sympy,emon10005/sympy,lidavidm/sympy,pbrady/sympy,lidavidm/sympy,drufat/sympy,shikil/sympy,liangjiaxing/sympy,bukzor/sympy,moble/sympy,lidavidm/sympy,yukoba/sympy,souravsingh/sympy,maniteja123/sympy,jamesblunt/sympy,atreyv/sympy,cccfran/sympy,kmacinnis/sympy,wanglongqi/sympy,abloomston/sympy,pandeyadarsh/sympy,skidzo/sympy,ga7g08/sympy,emon10005/sympy,mcdaniel67/sympy,iamutkarshtiwari/sympy,liangjiaxing/sympy,kaichogami/sympy,rahuldan/sympy,ahhda/sympy,jaimahajan1997/sympy,jamesblunt/sympy,moble/sympy,Designist/sympy,MechCoder/sympy,kaichogami/sympy,AunShiLord/sympy,souravsingh/sympy,grevutiu-gabriel/sympy,ahhda/sympy,kevalds51/sympy,toolforger/sympy,meghana1995/sympy,drufat/sympy,mafiya69/sympy,rahuldan/sympy,wyom/sympy,maniteja123/sympy,jbbskinny/sympy,sahilshekhawat/sympy,skidzo/sympy,Davidjohnwilson/sympy,iamutkarshtiwari/sympy,drufat/sympy,ga7g08/sympy,lindsayad/sympy,wyom/sympy,Designist/sympy,MechCoder/sympy,pandeyadarsh/sympy,kmacinnis/sympy,shipci/sympy,Mitchkoens/sympy,beni55/sympy,asm666/sympy,lindsayad/sympy