Cody

# Problem 1958. Add a row of zeros on top of a matrix

Solution 1995869

Submitted on 30 Oct 2019
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### Test Suite

Test Status Code Input and Output
1   Fail
x = rand(4); y_correct = [zeros(1,size(x,2));x]; assert(isequal(addrow(x),y_correct))

Error using horzcat Dimensions of arrays being concatenated are not consistent. Error in addrow (line 3) y=[zeros(1,a),x] Error in Test1 (line 3) assert(isequal(addrow(x),y_correct))

2   Pass
x = []; y_correct = zeros(1,0); assert(isequal(addrow(x),y_correct))

y = 1×0 empty double row vector

3   Fail
x = rand(8,1); y_correct = [zeros(1,size(x,2));x]; assert(isequal(addrow(x),y_correct))

Error using horzcat Dimensions of arrays being concatenated are not consistent. Error in addrow (line 3) y=[zeros(1,a),x] Error in Test3 (line 3) assert(isequal(addrow(x),y_correct))

4   Fail
x = zeros(0,1); y_correct = 0; assert(isequal(addrow(x),y_correct))

y = []

Assertion failed.