Problem 151. Magic!

Created by the cyclist
Appears in Date & Time II

Difficulty:Rate

Solve Later
Add To GroupÃ‚

Check whether the input matrix is a normal magic square:
http://en.wikipedia.org/wiki/Magic_square
Output the logical value true or false.

Solve

Solution Stats

2137 Solutions
296 Solvers

Last Solution submitted on Feb 19, 2025

Last 200 Solutions

Problem Comments

6 Comments

6 Comments

Show 3 older comments

the cyclist on 8 Mar 2013

I was not notified about some of the older comments, so was unaware of some of the weaknesses of the test suite, and the "gamed" solutions. I have substantially improved the test suite.

the cyclist on 8 Mar 2013

The MATLAB command magic(2), although it does produce output, is not a magic square, according to the definition. (There is no 2x2 magic square.)

Dyuman Joshi on 7 Feb 2023

Test cases have been added to the problem.

Solution Comments

Show comments

Problem Recent Solvers296

Problem Tags

Community Treasure Hunt

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

Start Hunting!

Problem 151. Magic!

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers296

Suggested Problems

More from this Author23

Problem Tags

Community Treasure Hunt

Problem 151. Magic!

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers296

Suggested Problems

More from this Author23

Problem Tags

Community Treasure Hunt

Players