Move integer_powers() to the top of risch.py, where it make more logical sense
Move integer_powers() to the top of risch.py, where it make more logical sense

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