Matrices
The package includes matrix and vector calculators along with step by step row operations. Here we enter an array, graph the corresponding system of equations, and perform one row operation.
> A:=array(1.. 3,1.. 4,[[1,-3,4,7],[9,-2,0,3],[-1,4,-1,8]]);
> glinsys(A);
Add to row 2 -9 times row 1
> A1:=linalg[addrow](A,1,2,-9);