Ejemplo n.º 1
0
 def test_create_from_rows(self):
     matrix = Matrix.from_rows([[1, 2], [3, 4], [5, 6]])
     assert matrix.size() == (3, 2)
     assert matrix.get_row(0) == [1, 2]
     assert matrix.get_row(1) == [3, 4]
     assert matrix.get_row(2) == [5, 6]
     assert matrix.get_col(0) == [1, 3, 5]
     assert matrix.get_col(1) == [2, 4, 6]
Ejemplo n.º 2
0
 def test_householder_row(self):
     vec = [5, 4, 3, 2, 1]
     householder = Householder(vec)
     row_matrix = Matrix.from_rows([vec])
     product = householder.multiply_right(row_matrix)
     assert product.num_rows() == 1
     assert product.get(0, 0) == pytest.approx(row_matrix.frobenius_norm())
     for elem in product.get_row(0)[1:]:
         assert elem == pytest.approx(0)
Ejemplo n.º 3
0
 def test_create_fail(self):
     with pytest.raises(ValueError):
         Matrix.from_cols([[1, 2], [3], [5, 6]])
     with pytest.raises(ValueError):
         Matrix.from_rows([[1, 2], [3, 4], [6]])