6.3 Web materialhttp: //www. cs. unc. edu/~krishnas/eigen/node6 .html
http://www.cs.ut.ee/"toomas_l/linalg/linl/nodel8.html
http://www.cs.utk.edu/~dongarra/etemplates/node95.html
http://www.esc.uvic.ca/~dolesky/csc449-540/5.5.pdf
http://www.ee.ucla.edu/~vandenbe/103/lineqsb.pdf
http://www.efgh.com/math/invcond.htm
http://www.ims.cuhk.edu.hk/~cis/2004.4/04.pdf
http: //www. krellinst. org/UCES/archive/classes/CNA/dir1.7/
uces1.7.html
http://www.library.Cornell.edu/nr/bookcpdf/cl1-3.pdf
http://www.library.Cornell.edu/nr/bookcpdf/cl1-6.pdf
http://www.ma.man.ac.uk/~higham/pap-le.html
http://www.ma.man.ac.uk/~nareport s/narep447.pdf
http://www.math.vt.edu/people/renardym/class_home/nova/bifs/
node52.html
http://www.math.wsu.edu/faculty/watkins/slides/qr03.pdf
http://www.maths.lancs.ac.uk/~gilbert/m306c/node22.html
http://www.maths.nuigalway.ie/MA385/novl4.pdf
http://www.mathworks.com/company/newsletters/news_notes/pdf/
sum95cleve.pdf
http://www.nasc.snu.ac.kr/sheen/nla/html/nodel3.html
http://www.nasc.snu.ac.kr/sheen/nla/html/node23.html
http://www.netlib.org/scalapack/tutorial/tsldl91.htm
http://www.physics.arizona.edu/~restrepo/475A/Notes/sourcea/
node53.html
http://www.sci.wsu.edu/math/faculty/watkins/slides/qr03.pdf
http://www.ugrad.cs.ubc.ca/~cs402/handouts/handoutl2.pdf
http://www.ugrad.cs.ubc.ca/~cs402/handouts/handout26.pdf
http://www.ugrad.cs.ubc.ca/~cs402/handouts/handout28.pdf
http://www.uwlax.edu/faculty/will/svd/condition/index.html
http://www.uwlax.edu/faculty/will/svd/norm/index.html
http://www2.msstate.edu/~pearson/num-anal/num-anal-notes/
qr-algorithm.pdf
http://www4.ncsu.edu/eos/users/w/white/www/white/dir1.7/
seel.7.6.html