验证矩阵是向量空间

def random_matrix(rows, columns):
    return tuple(
        tuple(uniform(-10,10) for j in range(0,columns))
        for i in range(0,rows)
    )

def random_5_by_3():
    return Matrix5_by_3(random_matrix(5,3))
    
def approx_equal_matrix_5_by_3(m1,m2):
    return all([
        isclose(m1.matrix[i][j],m2.matrix[i][j]) 
        for j in range(0,3)
        for i in range(0,5)
    ])
    
for i in range(0,100):
    a,b = random_scalar(), random_scalar()
    u,v,w = random_5_by_3(), random_5_by_3(), random_5_by_3()
    test(Matrix5_by_3.zero(), approx_equal_matrix_5_by_3, a,b,u,v,w)