validateQR(A, result);
}
@Test
public void testZeroDecompose() {
AMatrix a = ZeroMatrix.create(4, 3);
HouseholderQR alg = new HouseholderQR(false);
IQRResult result = alg.decompose(a);
AMatrix q = result.getQ();
AMatrix r = result.getR();
assertEquals(IdentityMatrix.create(3), q.subMatrix(0, 3, 0, 3));
assertTrue(r.isZero());
validateQR(a, result);
}