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Column space 
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#1
Sep2606, 11:16 PM

P: 39

so i tried looking it up on various sources including wikipedia, and i am still confused about column space actually is.
maybe it would help if one of you explained it to me? 


#2
Sep2706, 04:06 AM

P: 479

basically with the row space you have a subspace spanned by the rows (did this unit last semester so kinda hazy :S) with the column space its the same thing but you have to convert the matrix into a useable form. So if you have
[a b] [c d] then to get the rows you need for the column space you flip it to get [a c] [b d] you then do the same row operations as you would for a row space hope this helps (and is right :P) 


#3
Sep2706, 11:21 AM

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Thanks
PF Gold
P: 39,361

The "column space" of an nxn matrix is the subspace of R^{n} spanned by the individual columns of the matrix, thought of as n vectors.



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