most recent 30 from http://mathoverflow.net 2013-05-23T02:55:35Z http://mathoverflow.net/feeds/question/118613 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/118613/lu-decomosition-for-ill-condition-matrixes Mary 2013-01-11T10:19:34Z 2013-01-11T13:44:31Z

<p>hi.. i have a matrix like this:</p> <pre><code> { 1, 1/2, 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/9, 1/10, 1/11, 1/12, 1/13, 1/14, 1/15, 1/16, 1/17, 1/18, 1/19, 1/20, 1/21, 1/22, 1/23, 1/24, 1/25, }; </code></pre> <p>and i shoud calculate its LU decomposition. is it one of ill-condition matrixes? if so which one of dolittle,cholesky or crout solution is suitable for this matrix?Blockquote</p>