Problem 314. Find the sum of the elements in the "second" diagonal

Created by Roy Fahn

Solve Later

Find the sum of the elements in the diagonal that starts at the top-right corner and ends at the bottom-left corner.

Solve

Solution Stats

2284 Solutions
1169 Solvers

Last Solution submitted on May 14, 2025

Last 200 Solutions

Problem Comments

4 Comments

4 Comments

Show 1 older comment

@bmtran (Bryant Tran) on 12 Feb 2012

you might want to make a case that's not a magic square, considering the properties of the diagonals of a magic square...

Gaik Tamazian on 17 Feb 2012

There are only magic squares in test cases, however the problem doesn't specify a type of the matrix.

David Young on 1 Mar 2012

You should definitely strengthen the test suite. Lots of solutions rely on both diagonals being the same, even though this is not a property of the stated problem.

Kye Taylor on 7 Apr 2012

The "antidiagonal" is cooler sounding than "second diagonal"

Solution Comments

Show comments

Problem Recent Solvers1169

Problem Tags

Community Treasure Hunt

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

Start Hunting!

Problem 314. Find the sum of the elements in the "second" diagonal

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers1169

Suggested Problems

More from this Author1

Problem Tags

Community Treasure Hunt

Problem 314. Find the sum of the elements in the "second" diagonal

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers1169

Suggested Problems

More from this Author1

Problem Tags

Community Treasure Hunt

Players