Cody

# Problem 139. Determine if a Given Number is a Triangle Number

Solution 2027938

Submitted on 19 Nov 2019
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### Test Suite

Test Status Code Input and Output
1   Fail
x = 1:100; y_correct = false(1,100); y_correct([1 3 6 10 15 21 28 36 45 55 66 78 91]) = true; assert(isequal(isTriangleNumber(x),y_correct))

Out of memory. The likely cause is an infinite recursion within the program. Error in isTriangleNumber (line 6) assert(isequal(isTriangleNumber(x),y_correct))

2   Fail
x = 1; y_correct = true; assert(isequal(isTriangleNumber(x),y_correct))

Out of memory. The likely cause is an infinite recursion within the program. Error in isTriangleNumber (line 6) assert(isequal(isTriangleNumber(x),y_correct))

3   Fail
x = [4912734125;4912734126]; y_correct = [false;true]; assert(isequal(isTriangleNumber(x),y_correct))

Out of memory. The likely cause is an infinite recursion within the program. Error in isTriangleNumber (line 6) assert(isequal(isTriangleNumber(x),y_correct))