For which real-life cases is Doolittle's method used?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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  • For which real-life cases is Doolittle's method used?
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While Crout's method only produces a lower triangular matrix, Doolittle's method also produces an upper triangular matrix and a unit lower triangular matrix. As a result, if a matrix A's decomposition is as follows: A = LDU. A = (LD)U
Several actual applications of Doolittle's approach.

1. LU Factorization:  The process of factoring a matrix into two unique types of matrices was created by Alan Turing in 1948. An upper triangular matrix and a lower triangular matrix make up these two matrices. For triangular matrices, several matrix operations are simpler. "Easier" in this context refers to a result that will take a computer less time to calculate. Having access to a matrix's LU decomposition will probably speed up work with that matrix.

 

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