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.
Make a Palindrome Number
Test if a Number is a Palindrome without using any String Operations
Project Euler: Problem 1, Multiples of 3 and 5
Vectorizing, too easy or too hard?
Rotate a Matrix
Is A the inverse of B?
Find the Kronecker Tensor Product without using KRON
Find the nearest integer
Find the "ordinary" or Euclidean distance between A and Z
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