Added test to exhibit Matrices inablity to print greek letters.
Added test to exhibit Matrices inablity to print greek letters.

This seems to happen with Greek letters are used as function names are elements
of Matrices.

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