Cody

# Problem 451. Is this matrix orthogonal?

Solution 2050420

Submitted on 8 Dec 2019
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### Test Suite

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

Undefined function 'digits' for input arguments of type 'double'. Error in isOrthogonal (line 2) digits(4) Error in Test1 (line 3) assert(isequal(isOrthogonal(x),y_correct))

2   Fail
x = orth(randn(4)); y_correct = true; assert(isequal(isOrthogonal(x),y_correct))

Undefined function 'digits' for input arguments of type 'double'. Error in isOrthogonal (line 2) digits(4) Error in Test2 (line 3) assert(isequal(isOrthogonal(x),y_correct))

3   Fail
x = orth(randn(5)); y_correct = true; assert(isequal(isOrthogonal(x),y_correct))

Undefined function 'digits' for input arguments of type 'double'. Error in isOrthogonal (line 2) digits(4) Error in Test3 (line 3) assert(isequal(isOrthogonal(x),y_correct))

4   Fail
x=sqrt([3,1;1,1]); y_correct = false; assert(isequal(isOrthogonal(x),y_correct))

Undefined function 'digits' for input arguments of type 'double'. Error in isOrthogonal (line 2) digits(4) Error in Test4 (line 3) assert(isequal(isOrthogonal(x),y_correct))

5   Fail
x = magic(6); y_correct = false; assert(isequal(isOrthogonal(x),y_correct))

Undefined function 'digits' for input arguments of type 'double'. Error in isOrthogonal (line 2) digits(4) Error in Test5 (line 3) assert(isequal(isOrthogonal(x),y_correct))

6   Fail
x = randn(2)+1; y_correct = false; assert(isequal(isOrthogonal(x),y_correct))

Undefined function 'digits' for input arguments of type 'double'. Error in isOrthogonal (line 2) digits(4) Error in Test6 (line 3) assert(isequal(isOrthogonal(x),y_correct))