Computation of generalized inverses using Php/MySql environment
Milan B. Tasi\'c, Predrag S. Stanimirovi\'c, Selver H. Pepi\'c
TL;DR
This paper presents a web-based PHP/MySQL application for computing and storing generalized matrix inverses, analyzing how different storage and representation methods affect computational efficiency.
Contribution
It introduces a client/server model for weighted Moore-Penrose inverse computation using partitioning, with open source code and performance analysis.
Findings
Storage systems impact computational time
Pre-stored inverses reduce computation time
Web-based implementation facilitates testing and access
Abstract
The main aim of this paper is to develop a client/server-based model for computing the weighted Moore-Penrose inverse using the partitioning method as well as for storage of generated results. The web application is developed in the PHP/MySQL environment. The source code is open and free for testing by using a web browser. Influence of different matrix representations and storage systems on the computational time is investigated. The CPU time for searching the previously stored pseudo-inverses is compared with the CPU time spent for new computation of the same inverses.
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