Cody

# Problem 615. Nilpotent matrix

Solution 1996583

Submitted on 30 Oct 2019
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   Fail
x = 1; y_correct = false; assert(isequal(isnilpotent(x),y_correct))

Unrecognized function or variable 'x'. Error in isnilpotent (line 1) function y=isnilpotent(A);y=~trace(x^999); Error in Test1 (line 3) assert(isequal(isnilpotent(x),y_correct))

2   Fail
x = gallery('chebspec',5,0); y_correct = true; assert(isequal(isnilpotent(x),y_correct))

Unrecognized function or variable 'x'. Error in isnilpotent (line 1) function y=isnilpotent(A);y=~trace(x^999); Error in Test2 (line 3) assert(isequal(isnilpotent(x),y_correct))

3   Fail
x = gallery('chebspec',3,0); y_correct = true; assert(isequal(isnilpotent(x),y_correct))

Unrecognized function or variable 'x'. Error in isnilpotent (line 1) function y=isnilpotent(A);y=~trace(x^999); Error in Test3 (line 3) assert(isequal(isnilpotent(x),y_correct))

4   Fail
x = [1 0 0;0 2 0; 0 0 -3]; y_correct = false; assert(isequal(isnilpotent(x),y_correct))

Unrecognized function or variable 'x'. Error in isnilpotent (line 1) function y=isnilpotent(A);y=~trace(x^999); Error in Test4 (line 3) assert(isequal(isnilpotent(x),y_correct))

5   Fail
x = [6 -9; 4 -6]; y_correct = true; assert(isequal(isnilpotent(x),y_correct))

Unrecognized function or variable 'x'. Error in isnilpotent (line 1) function y=isnilpotent(A);y=~trace(x^999); Error in Test5 (line 3) assert(isequal(isnilpotent(x),y_correct))

6   Fail
x = rand(50); y_correct = false; assert(isequal(isnilpotent(x),y_correct))

Unrecognized function or variable 'x'. Error in isnilpotent (line 1) function y=isnilpotent(A);y=~trace(x^999); Error in Test6 (line 3) assert(isequal(isnilpotent(x),y_correct))