%path = "maths/linear system/2x2" %kind = kinda["problems"] %level = 10 \[ \begin{matrix} {{g.A[0][0]}} x & {{util.sgn(g.A[0][1])}} & {{abs(g.A[0][1])}} y & = & {{g.b[0]}} \\ {{g.A[1][0]}} x & {{util.sgn(g.A[1][1])}} & {{abs(g.A[1][1])}} y & = & {{g.b[1]}} \end{matrix} \] %include('chcko/getorshow',names=['x =','y ='])