Pivoting for LU Factorization - UPS
same calculation will su er numerical di culties when there is division by a nonzero number that is relatively small. A= 10 20 1 1 2 When computing the factors Land U, the process does not fail in this case because there is no division by zero. L= 1 0 1020 1 , U= 10 20 1 0 2 10 20
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