Given a x-by-x matrix filled with zeros (x is odd and > 3). Use 9s to draw a number 9 into it! Like this:
x = 5, y =
9 9 9 9 9
9 0 0 0 9
9 9 9 9 9
0 0 0 0 9
9 9 9 9 9
x = 7, y =
9 9 9 9 9 9 9
9 0 0 0 0 0 9
9 0 0 0 0 0 9
9 9 9 9 9 9 9
0 0 0 0 0 0 9
0 0 0 0 0 0 9
9 9 9 9 9 9 9
Solve

Solution Stats

914 Solutions

629 Solvers

Last Solution submitted on Mar 09, 2026

Last 200 Solutions

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers629

Thilanka Udara Truong Minh bao Lorenzo

Suggested Problems

More from this Author12

Problem Tags

Community Treasure Hunt

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

Start Hunting!