If Composer isn't an option for you, clone this repository and run build-phar.php to generate a phar archive that you can include into your project. PHP will autoload classes from inside the archive ...
NOTE: If you use Windows, you need to install MinGW/MSYS or Cygwin in order to use the SuiteSparse sparse and MatrixMarket matrix collection interface. builtin(id) - one of the built-in matrix ...