Cody

# Problem 451. Is this matrix orthogonal?

Solution 57167

Submitted on 6 Mar 2012 by Alan Chalker
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### 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))

c = 3

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

c = 4

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

c = 5

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

c = 2

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

c = 6

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

c = 2

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