Add examples to doctest
Add examples to doctest

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