Discover MakerZone

MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn more

Discover what MATLAB® can do for your career.

Opportunities for recent engineering grads.

Apply Today

Solution 200055

Submitted on 4 Feb 2013 by Takehiko KOBORI

Correct

22Size
Leading solution size is 11.
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
 
%% positive integers
x = 5;
assert(isequal(unique(rand_plusminus1(x)),[-1;1]))

                    
2
Pass
 
%% one element
x = 1;
assert(isequal(abs(rand_plusminus1(x)),1))

                    
3
Pass
 
%% zero => empty matrix
x = 0;
assert(isequal(rand_plusminus1(x),[]))

                    
4
Pass
 
%% positive integers
x = 999;
assert(isequal(unique(rand_plusminus1(x)),[-1;1]))