Given n, you should return an n-by-n unit matrix.
If input is n=2 then
A = [ 1 0
0 1 ]
If input is n=4 then
A = [ 1 0 0 0
0 1 0 0
0 0 1 0
0 0 0 1 ]
You need multiple tests to check a variety of situations.
This user (ALBERT ALEXANDER STONIER) appears to have gamed the system, with fraudulent "likes" of this unremarkable solution submitted by 'sock-puppet' accounts. —DIV
improve test suite
Back to basics 22 - Rotate a matrix
Is it a number?
07 - Common functions and indexing 2
Is My Wife Wrong?
Sum of the Multiplication of Vectors
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