add a test file for homework.

test.m

+% Test file
+
+addpath(genpath(pwd))  % add this foldeand r all subfolders to the path
+
+c = addTwoNumbers_syarra(1, 1);  % 1 + 1
+
+d = multiplyTwoNumbers_syarra(c, c);  % 2 * 2 
+
+% test my sqrt function
+assert(sqrt_syarra(d) == sqrt(d))