Numerical Analysis in PHP on a Web Server
Imagine an architecture like this: a Smartphone sends a single data set to a Database, which will be connected to a Web Server. My algorithm is on the Web Server processing all the data sets available in the Database, one at a time, in an offline fashion (no real-time performance needed). The algorithm is written in PHP. Once the algorithm on the Web Server has done all the processing, it returns the results to the former Smartphone/Database.
That said, my algorithm involves interpolations, integrations and Kalman filters in order to return some results. I am developing the server side software in PHP and now I really need a way to perform mathematical computations in a less time consuming and more efficient way (maybe Scilab?), than building each single math function I need on my own in PHP.
The question is, what Open Source software for mathematical analysis would you recommend me to use in order to link it to PHP ?
Hope I've been clear enough about something that indeed I am still a bit confused of.