Revision as of 12:17, 11 February 2008 by Dduque(talk | contribs)(New page: In linear algebra, an square matrix <math>A</math> is called '''invertible''' or '''non-singular''' if there exists a matrix <math>B</math> such that :<math>AB = BA = I, \ </math> wh...)
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In linear algebra, an square matrix is called invertible or non-singular if there exists a matrix such that
