Problem 2240. Sum the 'edge' values of a matrix

Sum the 'edge' values of an input matrix (the values along the perimeter).

Example

 [1 2 3
  4 5 6
  7 8 9]

Output = 1 + 2 + 3 + 6 + 9 + 8 + 7 + 4 = 40;

Assumption: Input matrix equal or bigger than 3x3.

Solve

Solution Stats

48.94% Correct | 51.06% Incorrect
Last Solution submitted on Sep 17, 2025

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers372

Suggested Problems

More from this Author2

Problem Tags

easy matrix sum

Community Treasure Hunt

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

Start Hunting!