# Need help understanding range of a linear tansformation

1. Nov 11, 2007

### eyehategod

I've been reading my book on finding the range of a linear transformation but cant understand it. Let's say:
T(x)=Ax
then the range(T)=columnSpace(A), right?

But I've gotten confused so much about columnspaces b/c ive read many books and websites that explain it differently from each other. Can anybody explain to me in plain English how to find the columnspace(A) so I can find the range(T). Thanks in advance.

Last edited: Nov 11, 2007
2. Nov 11, 2007

### EnumaElish

Last edited: Nov 11, 2007