Re: PHP support for matrix operations - BLAS, LAPACK.

On Sun, Dec 4, 2022, 8:43 PM j adams <zardozrocks@gmail.com> wrote: > I apologize if I have the wrong mailing list here. I'm hoping ot ask the > PHP developer community if there's any appetite for functions to handle > matrix operations and scientific computing. > > I took a course on machine learning which had us code solutions using > matlab/octave. This year I embarked on trying to translate those functions > to PHP and have been quite surprised to learn that pure php is quite > inefficient for matrix multiplication. I've been trying to chase down an > effective way to perform matrix operations in PHP and posting my questions > and progress on this forum at PHPBuilder: > > Ýß$0Qƒ÷.œ 5 > µhttps://board.phpbuilder.com/d/10403480-converting-matlab-machine-learning-routines-to-php-need-matrix-operations > > Fast matrix operations seem to be absolutely critical for machine learning, > at least for Support Vector Machines and Neural Networks. I know that there > is a FANN extension, but it seems to me that it would be beneficial for > PHP's use in scientific applications if it had support -- either natively > or via some extension -- for matrix operations and possibly other > statistical or scientific computations. Python has numpy, for example. > > How does everyone feel about BLAS or LAPACK extension for PHP? I'm poorly > equipped to cook up such a thing, but these libraries already exist and > could offer great improvements in performance. > I remember studying some ML algorithms back in 2015 and I felt PHP was lacking a lot in terms of matrix operations, specially invert a matrix. It would have been cool to have some fundamental functionalities baked in. >