Problem 451. Is this matrix orthogonal?

Created by Bruce Raine

Solve Later

Given a square matrix, a, determine whether it is orthogonal.
INPUT: a, a n x n matrix
OUTPUT: true or false

Solve

Solution Stats

2095 Solutions
336 Solvers

Last Solution submitted on Nov 02, 2024

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

Alfonso Nieto-Castanon on 5 Mar 2012

perhaps you could these cases to avoid some non-general solutions... TEST1: x=sqrtm([2,1;1,1]); y_correct=false; TEST2: x=randn(3); y_correct=false;

Bruce Raine on 7 Mar 2012

Thanks for the suggestions. I have implemented both of the tests. Cheers.

Solution Comments

Show comments

Problem Recent Solvers336

Suggested Problems

Find all elements less than 0 or greater than 10 and replace them with NaN

15529 Solvers
It dseon't mettar waht oedrr the lrettes in a wrod are.

1809 Solvers
Find the logic

290 Solvers
Relative ratio of "1" in binary number

1409 Solvers
04 - Scalar Equations 1

542 Solvers

More from this Author16

Is A the inverse of B?

939 Solvers
Create a square matrix of multiples

475 Solvers
Find the nearest integer

347 Solvers
Find the "ordinary" or Euclidean distance between A and Z

161 Solvers
Flip the main diagonal of a matrix

806 Solvers

Problem Tags

Community Treasure Hunt

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

Start Hunting!