//@code
objref m1, m2, v1
m1 = new Matrix(6, 6)
for i=-1,1 {
	if (i == 0) {
		m1.setdiag(i, 2)
	}else{
		m1.setdiag(i, -1)
	}
}
m2 = m1.inverse()
print "m1"
m1.printf
print "m2"
m2.printf(" %8.5f")
print "m1*m2"
m1.mulm(m2).printf(" %8.5f")