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Solution 68532

Submitted on 31 Mar 2012 by Bruce Raine

Correct

33Size
Leading solution size is 9.
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

Test Suite

Test
Code Input and Output
1
Pass
 
%% test one
x = orth(randn(3));
y_correct = true;
assert(isequal(isOrthogonal(x),y_correct))
y =
     1
2
Pass
 
%% test two
x = orth(randn(4));
y_correct = true;
assert(isequal(isOrthogonal(x),y_correct))
y =
     1
3
Pass
 
%% test three
x = orth(randn(5));
y_correct = true;
assert(isequal(isOrthogonal(x),y_correct))
y =
     1
4
Pass
 
%% test four
x=sqrt([3,1;1,1]);
y_correct = false;
assert(isequal(isOrthogonal(x),y_correct))
y =
     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 =  2.000402e-18.}
{> In isOrthogonal at 3
  In verifyCode>evaluateCode at 189
  In verifyCode at 37
  In fevalJSON at 14}
y =
     0
6
Pass
 
%% test six
x = randn(2)+1;
y_correct = false;
assert(isequal(isOrthogonal(x),y_correct))
y =
     0