Make rs_atan work with constant term in series and improve error reports
Make rs_atan work with constant term in series and improve error reports

yashsharan/sympy,cswiercz/sympy,ahhda/sympy,wyom/sympy,souravsingh/sympy,Vishluck/sympy,atreyv/sympy,emon10005/sympy,iamutkarshtiwari/sympy,iamutkarshtiwari/sympy,kaichogami/sympy,kevalds51/sympy,ChristinaZografou/sympy,oliverlee/sympy,postvakje/sympy,shikil/sympy,ga7g08/sympy,debugger22/sympy,pandeyadarsh/sympy,shikil/sympy,yukoba/sympy,sampadsaha5/sympy,Davidjohnwilson/sympy,postvakje/sympy,saurabhjn76/sympy,souravsingh/sympy,VaibhavAgarwalVA/sympy,wanglongqi/sympy,rahuldan/sympy,pandeyadarsh/sympy,Shaswat27/sympy,Vishluck/sympy,ahhda/sympy,grevutiu-gabriel/sympy,lindsayad/sympy,skidzo/sympy,toolforger/sympy,maniteja123/sympy,lindsayad/sympy,Gadal/sympy,AkademieOlympia/sympy,ga7g08/sympy,mafiya69/sympy,debugger22/sympy,sahmed95/sympy,Curious72/sympy,VaibhavAgarwalVA/sympy,drufat/sympy,kevalds51/sympy,moble/sympy,abhiii5459/sympy,toolforger/sympy,lindsayad/sympy,kaushik94/sympy,kumarkrishna/sympy,Designist/sympy,kumarkrishna/sympy,Titan-C/sympy,skidzo/sympy,yashsharan/sympy,atreyv/sympy,mcdaniel67/sympy,hargup/sympy,mafiya69/sympy,emon10005/sympy,Arafatk/sympy,ahhda/sympy,yukoba/sympy,jerli/sympy,MechCoder/sympy,Titan-C/sympy,kumarkrishna/sympy,Arafatk/sympy,jerli/sympy,farhaanbukhsh/sympy,sampadsaha5/sympy,garvitr/sympy,yukoba/sympy,jaimahajan1997/sympy,Designist/sympy,cswiercz/sympy,bukzor/sympy,aktech/sympy,skidzo/sympy,saurabhjn76/sympy,atsao72/sympy,kevalds51/sympy,shikil/sympy,Gadal/sympy,ga7g08/sympy,sampadsaha5/sympy,farhaanbukhsh/sympy,cswiercz/sympy,Curious72/sympy,hargup/sympy,postvakje/sympy,Davidjohnwilson/sympy,pandeyadarsh/sympy,oliverlee/sympy,grevutiu-gabriel/sympy,garvitr/sympy,farhaanbukhsh/sympy,wyom/sympy,wyom/sympy,sahmed95/sympy,maniteja123/sympy,Gadal/sympy,madan96/sympy,Davidjohnwilson/sympy,ChristinaZografou/sympy,wanglongqi/sympy,atsao72/sympy,kaushik94/sympy,chaffra/sympy,asm666/sympy,AkademieOlympia/sympy,moble/sympy,moble/sympy,mcdaniel67/sympy,oliverlee/sympy,mafiya69/sympy,jaimahajan1997/sympy,debugger22/sympy,garvitr/sympy,Titan-C/sympy,Designist/sympy,Shaswat27/sympy,chaffra/sympy,chaffra/sympy,MechCoder/sympy,bukzor/sympy,VaibhavAgarwalVA/sympy,madan96/sympy,atsao72/sympy,MechCoder/sympy,abhiii5459/sympy,Curious72/sympy,maniteja123/sympy,mcdaniel67/sympy,iamutkarshtiwari/sympy,aktech/sympy,emon10005/sympy,asm666/sympy,kaushik94/sympy,Vishluck/sympy,abhiii5459/sympy,saurabhjn76/sympy,Shaswat27/sympy,hargup/sympy,ChristinaZografou/sympy,grevutiu-gabriel/sympy,sahmed95/sympy,Arafatk/sympy,rahuldan/sympy,jaimahajan1997/sympy,rahuldan/sympy,yashsharan/sympy,jbbskinny/sympy,wanglongqi/sympy,AkademieOlympia/sympy,drufat/sympy,aktech/sympy,drufat/sympy,atreyv/sympy,jerli/sympy,bukzor/sympy,kaichogami/sympy,jbbskinny/sympy,souravsingh/sympy,asm666/sympy,jbbskinny/sympy,toolforger/sympy,madan96/sympy,kaichogami/sympy