algebra_lineal.py

import numpy as np
import matplotlib.pyplot as plt

def get_column(matrix, column=0):
  values = []
  for row in matrix:
    values.append(row[column])

  return values


tabla_1 = [
  [70, 0], 
  [57, 8], 
  [60, 7.5],
  [63, 13.5], 
  [57, 14], 
  [66, 8.5],
  [67, 4.5], 
  [107, -11],
  [96, -7.5], 
  [88, -8.5], 
  [80, 1.5], 
  [64, 0.5],
  [79, 2], 
  [82, -6], 
  [97, -4] 
]

x = get_column(tabla_1, 1)
y = get_column(tabla_1)

coeficientes = np.ones(len(tabla_1), dtype="int")
tabla_tmp  = list(map(lambda x, y: [y, x], x, coeficientes))
tabla_tmp = np.matrix(tabla_tmp)

print(len(tabla_tmp))
print(np.dot(tabla_tmp, tabla_tmp.T))