Eero Simoncelli's guide to linear algebra is very good too and likely more concise, although it doesn't cover eigenvectors and eigenvalues. http://www.cns.nyu.

Eero Simoncelli's guide to linear algebra is very good too and likely more concise, although it doesn't cover eigenvectors and eigenvalues. http://www.cns.nyu.edu/~eero/NOTES/geomLinAlg.pdf http://www.cns.nyu.edu/~eero/NOTES/geomLinAlg.pdf