data = [[4, 4], [-4,4], [-4, -4], [4, -4]]
ethalon = [0 , 1, 0, 0]

print(data)
print(ethalon)
w = [[0.3], [0.1]]
t = [0.2]
a = 0.2
func = lambda x: 1 if x > 0 else 0
delta = 1
p = 0
while delta != 0 and p < 50:
	delta = 0
	y = 0.0
	p = p + 1
	for line, e in zip(data, ethalon):
		y = func(line[0] * w[0][0] + line[1] * w[1][0] - t[0])
		print(y, end = " ")
		w[0][0] = w[0][0] - a * line[0] * (y - e)
		w[1][0] = w[1][0] - a * line[1] * (y - e)
		t[0] = t[0] + a * (y - e)
		delta += (y - e) ** 2
	print(delta)

print(w, t)