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]
Solve

Solution Stats

75.66% Correct | 24.34% Incorrect
Last Solution submitted on Jul 23, 2025

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