http://www-users.cs.umn.edu/~saad/eig_book_2ndEd.pdf
http://gbenthien.net/NumLinAlg.pdf
http://www.math.mtu.edu/~msgocken/pdebook2/tutorial.pdf
http://math.mit.edu/linearalgebra/ila0601.pdf
http://www-users.cs.umn.edu/~saad/eig_book_2ndEd.pdf
http://www.cs.ucdavis.edu/~bai/ET/contents.html
http://www.math.ethz.ch/~hiptmair/Seminars/STRUCPRES/Articles/BOF10.pdf
http://eprints.ma.man.ac.uk/466/01/38198.pdf
http://www.math.tamu.edu/~dallen/linear_algebra/chpt6.pdf
http://saba.kntu.ac.ir/eecd/sedghizadeh/linearalgebra/LA_notes/text_book/LA_ch5.pdf
http://www.mnouri.ir/riazi%20karbordi.pdf