jim lambers mat461 561 spring semester 2009 10 lecture 15 notes these notes correspond to section 6 6 in the text special types of matrices the solution of a system ...
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...Jim lambers mat spring semester lecture notes these correspond to section in the text special types of matrices solution a system linear equations ax b can be obtained using gaussian elimination with pivoting conjunction back substitution for any nonsingular matrix however there are several classes which modications this process more appropriate we will now examine some diagonally dominant amatrix is strictly if each diagonal element aii larger magnitude than sum magnitudes all other elements ith row that n x manyapplications involve symmetric positive denite and also t generalization number then it has following properties largest lies on eigenvalues det worth noting rst two hold even not general easy determine whether given one approach check k kk called leading principal submatrices or minors shown only desirable property performed them without pivot furthermore gaussianelimination applied such robust respect accumulation roundo error most practical solving systems involving because...