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May 19, 2017 at 6:30 comment added Maxis Jaisi The problem with this approach is to motivate the multiplication of a matrix by a vector.
Aug 6, 2013 at 20:14 comment added matqkks This is the best answer so far as you do not need to know about transformations.
May 18, 2011 at 15:49 comment added Vass This is a great answer. Now explained enough though. It is a similar way to how Gilbert Strang 'builds' up matrix multiplication in his video lectures.
Apr 8, 2011 at 22:56 history answered hhh CC BY-SA 3.0