Cody

# Problem 451. Is this matrix orthogonal?

Solution 659336

Submitted on 23 Apr 2015 by Zikobrelli
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

### Test Suite

Test Status Code Input and Output
1   Pass
%% test one x = orth(randn(3)); y_correct = true; assert(isequal(isOrthogonal(x),y_correct))

ans = 1

2   Pass
%% test two x = orth(randn(4)); y_correct = true; assert(isequal(isOrthogonal(x),y_correct))

ans = 1

3   Pass
%% test three x = orth(randn(5)); y_correct = true; assert(isequal(isOrthogonal(x),y_correct))

ans = 1

4   Pass
%% test four x=sqrt([3,1;1,1]); y_correct = false; assert(isequal(isOrthogonal(x),y_correct))

ans = 0

5   Pass
%% test five x = magic(6); y_correct = false; assert(isequal(isOrthogonal(x),y_correct))

[Warning: Matrix is close to singular or badly scaled. Results may be inaccurate. RCOND = 4.800964e-18.] [> In isOrthogonal (line 2) In evaluateCode', '/users/mss.system.nWWDZL/+cody/verifyCode.m', 238)" style="font-weight:bold">cody.verifyCode>evaluateCode (line 238) In cody.verifyCode (line 43) In mls.internal.fevalJSON (line 14)] ans = 0

6   Pass
%% test six x = randn(2)+1; y_correct = false; assert(isequal(isOrthogonal(x),y_correct))

ans = 0