diff --git a/2.m b/2.m
index 4cd10b6..39857f6 100644
--- a/2.m
+++ b/2.m
@@ -2,7 +2,7 @@ clear all;
 close all;
 
 A = zeros(5,10)
-sum_col = zeros(10)
+sum_col = zeros(1,10)
 for i=1:5;
   for j=1:10;
     b = j + (i-1)*(10)
diff --git a/3.m b/3.m
new file mode 100644
index 0000000..e69de29