Triangular matrices in 3D array - MATLAB Cody - MATLAB Central

Problem 1704. Triangular matrices in 3D array

Difficulty:
(67)
Rate

Given a 3D numeric array x, return an array y of the same size in which all entries to the right of the main diagonal are zero for y(:,:,i).

Example

If

x(:,:,1) = 1 2 3
           4 5 6
           7 8 9

x(:,:,2) = 1 4 7
           2 5 8
           3 6 9

x(:,:,3) = 1 2 3
           1 2 3
           1 2 3

then

y(:,:,1) = 1 0 0
           4 5 0
           7 8 9

y(:,:,2) = 1 0 0
           2 5 0
           3 6 9

y(:,:,3) = 1 0 0
           1 2 0
           1 2 3
Solve

Solution Stats

69.23% Correct | 30.77% Incorrect
Last Solution submitted on Apr 10, 2025

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers133

Suggested Problems

More from this Author44

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!