This is a test for learning the process of creating a Cody problem.
The goal of this test problem will be to create an array, x, with 5 rows and 5 columns of nothing but 1's.
Find common elements in matrix rows
Make a random, non-repeating vector.
Change the sign of even index entries of the reversed vector
Compare two input matrices
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office