columnspace():Implemented columnspace of a matrix.
columnspace():Implemented columnspace of a matrix.

Implementation of columnspace on the same lines as that of the
already implemented nullspace(fix to issue #8961).
Example:
In[1]: A=Matrix([[1,1,2],[2,1,3],[3,1,4]])
In[2]: A.columnspace()
Out[2]: [[1], [1]]
         [ ], [ ]
         [2], [1]
         [ ], [ ]
         [3], [1]

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