Derivative docstring improved.
Derivative docstring improved.

amitjamadagni/sympy,abhiii5459/sympy,sunny94/temp,postvakje/sympy,beni55/sympy,toolforger/sympy,AunShiLord/sympy,garvitr/sympy,Titan-C/sympy,dqnykamp/sympy,dqnykamp/sympy,vipulroxx/sympy,aktech/sympy,Vishluck/sympy,rahuldan/sympy,skidzo/sympy,cswiercz/sympy,abhiii5459/sympy,asm666/sympy,jaimahajan1997/sympy,MechCoder/sympy,Davidjohnwilson/sympy,mattpap/sympy-polys,yukoba/sympy,lidavidm/sympy,yashsharan/sympy,hrashk/sympy,kevalds51/sympy,hargup/sympy,mcdaniel67/sympy,wyom/sympy,hazelnusse/sympy-old,pbrady/sympy,oliverlee/sympy,toolforger/sympy,Shaswat27/sympy,diofant/diofant,pandeyadarsh/sympy,sahmed95/sympy,grevutiu-gabriel/sympy,abloomston/sympy,kumarkrishna/sympy,tovrstra/sympy,garvitr/sympy,ahhda/sympy,flacjacket/sympy,saurabhjn76/sympy,ga7g08/sympy,ga7g08/sympy,sahmed95/sympy,pbrady/sympy,liangjiaxing/sympy,farhaanbukhsh/sympy,AkademieOlympia/sympy,beni55/sympy,iamutkarshtiwari/sympy,hrashk/sympy,Gadal/sympy,emon10005/sympy,sampadsaha5/sympy,kmacinnis/sympy,aktech/sympy,amitjamadagni/sympy,MridulS/sympy,oliverlee/sympy,jamesblunt/sympy,MridulS/sympy,chaffra/sympy,shikil/sympy,skidzo/sympy,kaichogami/sympy,drufat/sympy,yukoba/sympy,yashsharan/sympy,shikil/sympy,hazelnusse/sympy-old,sunny94/temp,rahuldan/sympy,bukzor/sympy,Gadal/sympy,AunShiLord/sympy,yukoba/sympy,cccfran/sympy,minrk/sympy,kumarkrishna/sympy,AkademieOlympia/sympy,Shaswat27/sympy,grevutiu-gabriel/sympy,bukzor/sympy,Designist/sympy,skirpichev/omg,fperez/sympy,sahmed95/sympy,jaimahajan1997/sympy,meghana1995/sympy,Arafatk/sympy,sampadsaha5/sympy,madan96/sympy,cswiercz/sympy,ryanGT/sympy,kaushik94/sympy,Vishluck/sympy,Arafatk/sympy,moble/sympy,iamutkarshtiwari/sympy,emon10005/sympy,Mitchkoens/sympy,meghana1995/sympy,mafiya69/sympy,madan96/sympy,Titan-C/sympy,atsao72/sympy,liangjiaxing/sympy,jaimahajan1997/sympy,shipci/sympy,abloomston/sympy,mafiya69/sympy,ChristinaZografou/sympy,wyom/sympy,lidavidm/sympy,Vishluck/sympy,saurabhjn76/sympy,Curious72/sympy,kevalds51/sympy,debugger22/sympy,minrk/sympy,VaibhavAgarwalVA/sympy,ahhda/sympy,pbrady/sympy,cswiercz/sympy,mcdaniel67/sympy,kaichogami/sympy,kaichogami/sympy,vipulroxx/sympy,souravsingh/sympy,drufat/sympy,abhiii5459/sympy,ga7g08/sympy,liangjiaxing/sympy,maniteja123/sympy,skidzo/sympy,sahilshekhawat/sympy,oliverlee/sympy,mafiya69/sympy,jerli/sympy,mcdaniel67/sympy,KevinGoodsell/sympy,shikil/sympy,meghana1995/sympy,asm666/sympy,kevalds51/sympy,jerli/sympy,garvitr/sympy,chaffra/sympy,hargup/sympy,Designist/sympy,VaibhavAgarwalVA/sympy,hargup/sympy,lindsayad/sympy,kmacinnis/sympy,MridulS/sympy,kaushik94/sympy,moble/sympy,Davidjohnwilson/sympy,atreyv/sympy,AkademieOlympia/sympy,abloomston/sympy,yashsharan/sympy,drufat/sympy,shipci/sympy,iamutkarshtiwari/sympy,Sumith1896/sympy,lindsayad/sympy,wanglongqi/sympy,moble/sympy,grevutiu-gabriel/sympy,cccfran/sympy,jerli/sympy,wyom/sympy,debugger22/sympy,shipci/sympy,Sumith1896/sympy,jamesblunt/sympy,Titan-C/sympy,postvakje/sympy,Mitchkoens/sympy,vipulroxx/sympy,atreyv/sympy,srjoglekar246/sympy,kmacinnis/sympy,toolforger/sympy,rahuldan/sympy,wanglongqi/sympy,jbbskinny/sympy,ChristinaZografou/sympy,hrashk/sympy,Gadal/sympy,beni55/sympy,cccfran/sympy,souravsingh/sympy,kaushik94/sympy,pandeyadarsh/sympy,wanglongqi/sympy,saurabhjn76/sympy,sunny94/temp,Sumith1896/sympy,lindsayad/sympy,Designist/sympy,farhaanbukhsh/sympy,ahhda/sympy,AunShiLord/sympy,MechCoder/sympy,Mitchkoens/sympy,pandeyadarsh/sympy,farhaanbukhsh/sympy,atsao72/sympy,ChristinaZografou/sympy,sahilshekhawat/sympy,jbaayen/sympy,bukzor/sympy,aktech/sympy,Arafatk/sympy,Davidjohnwilson/sympy,atreyv/sympy,maniteja123/sympy,madan96/sympy,emon10005/sympy,asm666/sympy,jbbskinny/sympy,MechCoder/sympy,jamesblunt/sympy,debugger22/sympy,souravsingh/sympy,sampadsaha5/sympy,sahilshekhawat/sympy,postvakje/sympy,pernici/sympy,Shaswat27/sympy,maniteja123/sympy,Curious72/sympy,chaffra/sympy,jbbskinny/sympy,dqnykamp/sympy,Curious72/sympy,atsao72/sympy,VaibhavAgarwalVA/sympy,kumarkrishna/sympy,lidavidm/sympy