12 Mar
2008
12 Mar
'08
5:08 p.m.
2008/3/12 Jed Brown
It would be a shame to ...miss the very important point that a matrix is nothing more than a linear transformation between finite dimensional spaces.
I rate this obvious seeming fact as one of the most important things I've learnt about numerical linear algebra in my career. The number of times I've seen (and...oops...written it myself) code that copies data out of some structure into some standard matrix structure when the original structure could itself have been seen as a function that transforms vectors is scary. It pays to think functionally. -- Dan