Given a square matrix, a, determine whether it is orthogonal.
INPUT: a, a n x n matrix
OUTPUT: true or false
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;
Thanks for the suggestions. I have implemented both of the tests. Cheers.
I believe the test cases are wrong, I could not prove that a matrix from randn(3) is orthogonal.
surface of a spherical planet
vectorization in N
Back to basics 17 - white space
The sum of the numbers in the vector
07 - Common functions and indexing 6
Find the definite integral of various linear functions
Is A the inverse of B?
Pythagorean perfect squares: find the square of the hypotenuse and the length of the other side
Find the largest value in the 3D matrix
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office