# -*- coding: utf-8 -*-
"""
Created on Thu Nov 18 14:34:51 2021

@author: Sim
"""
import numpy as np

A = np.array([[1, 6, 8], [2, 4, 7], [3, 5, 9]])

x2 = np.transpose(A)
print(x2)
x3 = A.T
print(x3)


x4 = np.linalg.inv(A)
print(x4)
print(np.matmul(A,x4))

b = np.array([[37], [31], [40]])
print(b)
x5 = np.linalg.solve(A,b)
print(x5)
chkb = np.matmul(A, x5)
print(chkb)
x6 = np.matmul(x4, b)
print(x6)