diff --git a/HW6/problem_1_data.m b/HW6/problem_1_data.m
index 6af2956..3606608 100644
--- a/HW6/problem_1_data.m
+++ b/HW6/problem_1_data.m
@@ -1,7 +1,7 @@
 
 % part a
 xa=[1 2 3 4 5]';
-yb=[2.2 2.8 3.6 4.5 5.5]';
+ya=[2.2 2.8 3.6 4.5 5.5]';
 
 % part b
 
@@ -10,6 +10,6 @@ yb=[1.6 3.6 4.4 3.4 2.2 2.8 3.8 4.6]';
 
 % part c
 
-xc=[0.5 1 2 3 4 5 6 7 9];
-yc=[6 4.4 3.2 2.7 2.2 1.9 1.7 1.4 1.1];
+xc=[0.5 1 2 3 4 5 6 7 9]';
+yc=[6 4.4 3.2 2.7 2.2 1.9 1.7 1.4 1.1]';