Problem 43689. Make an identity matrix whose diagonal elements are 1:n
For a given input n, make an n by n identity matrix that contains the elements 1:n along its diagonal. For example, if input=5:
output = [1 0 0 0 0;
0 2 0 0 0;
0 0 3 0 0;
0 0 0 4 0;
0 0 0 0 5]
Solution Stats
Problem Comments
-
1 Comment
goc3
on 21 Dec 2016
This problem's title and description were cleaned up and additional test cases were added.
Solution Comments
Show commentsProblem Recent Solvers114
Suggested Problems
-
Select every other element of a vector
35189 Solvers
-
Remove any row in which a NaN appears
8694 Solvers
-
Side of an equilateral triangle
6679 Solvers
-
Matlab Basics - Absolute Value
650 Solvers
-
Replace every 3rd element in a vector with 4
258 Solvers
More from this Author7
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!