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A space efficient flexible pivot selection approach to evaluate determinant and inverse of a matrix

2013/04/25 by Hafsa Athar Jafree, Jafree, Hafsa Athar, Muhammad Imtiaz +7
Computer Science · Mathematics · #Commutative Algebra (math.AC) #FOS: Mathematics #Matrix Theory and Algorithms #Rings and Algebras (math.RA) #math.AC #math.RA

paper · pdf · doi:10.48550/arxiv.1304.6893

arxiv created 2013/04/25 · openalex publication_date 2013/04/25 · arxiv updated 2013/04/26 · openalex created_date 2025/10/24 · openalex updated_date 2026/07/28

Abstract

This paper presents new approaches for finding the determinant and inverse of a matrix. The choice of pivot selection is kept arbitrary and can be made according to the users need. So the ill conditioned matrices can be handled easily. The algorithms are more efficient as they save unnecessary data storage by reducing the order of the matrix after each iteration in the computation of determinant and incorporating dictionary notation (Chvatal, 1983) in the computation of inverse matrix. These algorithms are highly class room oriented and unlike the matrix inversion method (Khan, Shah, & Ahmad, 2010) the presented algorithm does not need any kind of permutations or inverse permutations.

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