Matrix arithmetic in PHP again

Question

Hi,

I recently asked a question about matrix libraries in PHP.

I went with the suggestion of using the Math_Matrix PEAR library. However, it turns out that this library is out of date (meaning I had to change some of the code in the library to make it work with my version of PHP), and it doesn't really do what I need (e.g., it won't let you transpose a non-square matrix, for some reason).

I wonder if anyone has any experience of working with matrices in PHP, and if they can recommend a library that they consider to be workable.

Thanks,

Ben