Equations to matrices

We saw that linear equations can be concisely written in matrix notation as . For example, the equations

can be displayed as :

> matrix(3,3,[0,1,2,1,-1,3,2,1,11])*X=matrix(3,1,[1,3,1]);

We form an augmented matrix
( | ) from these and call it .

> M:=augment(matrix(3,3,[0,1,2,1,-1,3,2,1,11]),matrix(3,1,[1,3,1]));

>