# -*- coding: utf-8 -*-
"""
Created on Thu Sep 15 16:53:46 2022

@author: 102194

Lab8 Q5
"""

import numpy as np
from scipy import linalg as la

A = np.random.rand(4,4)

Q,R = la.qr(A)

print(R)
print()
print(la.norm(Q.T-la.inv(Q),2))