add element to cell function in matlab

main.m
function new_cell = add_elem_to_cell(old_cell, new_elem)
% Adds an element to a cell
%
% Inputs:
%   - old_cell: the cell to add an element to
%   - new_elem: the new element to add to the cell
%
% Output:
%   - new_cell: the resulting cell with the new element added

% Make a copy of the old cell
new_cell = old_cell;

% Add the new element to the end of the cell
new_cell{end + 1} = new_elem;
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main.m
>> old_cell = {'a', 'b', 'c'};
>> new_elem = 'd';
>> new_cell = add_elem_to_cell(old_cell, new_elem);
>> disp(new_cell)
    'a'    'b'    'c'    'd'
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