  100	dim a[5,5], b[5,5], c[5,5]
  110	for i = 1 to 5
  120		for j = 1 to 5
  130			a[i,j] = sin(3.14159/(i+j))
  140		next j
  150	next i
  160	mat print a;
  170	mat b = inv(a)
  180	mat print b;
  185	mat c = b*a
  186	mat print c
  190	end
