Concluído

Make calculation of the inverse matrix faster

Hi,

in my php script i need to work with matrix. thus i found a great class on phpclasses.org.

it works fine, but when i like to calculate the inverse of a matrix it takes to much time, for example:

4x4 matrix needs ca. [url removed, login to view]

5x5 matrix needs ca. [url removed, login to view]

7x7 matrix needs ca. [url removed, login to view]

in my application for exmaple i have a matrix of 36x36 and there is still no matrix after 30min.

i found this site in the web:

<[url removed, login to view]>

when i copy my 36x36 matrix to there it only takes ca. 1 second. so i think there should be a better solution for that class. i think so, i do not know!

i have put the class with example in the attachment, then you can have a look at it.

i like to have this class back, but the calculation of bigger NxN matrix should be a lot of faster. i only want changes on the class, no strange stuff like zend optimization.

## Deliverables

1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done.

2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables):

a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment.

b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request.

3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement).

## Platform

apache webserver with php

Habilidades: Engenharia, MySQL, PHP, Arquitetura de software, Teste de Software

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( 20 comentários ) Germany

ID do Projeto: #2839306

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