diff --git a/ex_42.py b/ex_42.py
index 9994fda..113851b 100644
--- a/ex_42.py
+++ b/ex_42.py
@@ -6,7 +6,7 @@ A = np.array(
 	, [1, 0, 1, 0, 1, 0]
 	, [1, 1, 0, 1, 0, 0]
 	, [0, 0, 1, 0, 1, 0]
-	, [0, 0, 0, 1, 0, 1]
+	, [0, 1, 0, 1, 0, 1]
 	, [0, 0, 0, 0, 1, 0]
 	])
 
@@ -19,7 +19,11 @@ v_max = eigvectors[l_max_i]
 def some_norm(M):
 	return np.abs(M).max()
 
+B = A
 for k in range(1, 21):
-	print("some kind of error for k =", k, ":", some_norm(A**k - l_max**k * np.outer(v_max, v_max.T)))
+	B = B.dot(A)
+	print(B)
+	print(l_max**k * np.outer(v_max, v_max))
+	print("some kind of error for k =", k, ":", some_norm(B - l_max**k * np.outer(v_max, v_max)))