write a user-defined function that adds or subtracts two polynomials of any order in matlab

main.m
function [result] = poly_add_sub(poly1, poly2, isAddition)
% poly_add_sub adds or subtracts two polynomials of any order
%
% Inputs:
%   poly1: 1D array representing the coefficients of the first polynomial
%   poly2: 1D array representing the coefficients of the second polynomial
%   isAddition: boolean indicating whether to add or subtract the polynomials
%              (true for addition, false for subtraction)
%
% Output:
%   result: 1D array representing the coefficients of the resulting polynomial
%
% Example usage:
%   poly_add_sub([1 2 3], [4 5 6], true)  % add (1 + 2x + 3x^2) + (4 + 5x + 6x^2) = 5 + 7x + 9x^2
%
%   poly_add_sub([1 2 3], [4 5 6], false)  % subtract (1 + 2x + 3x^2) - (4 + 5x + 6x^2) = -3 - 3x - 3x^2

if length(poly1) < length(poly2)
    poly1(end+1:length(poly2)) = 0;
elseif length(poly1) > length(poly2)
    poly2(end+1:length(poly1)) = 0;
end

if isAddition
    result = poly1 + poly2;
else
    result = poly1 - poly2;
end

while length(result) > 1 && result(end) == 0
    result = result(1:end-1);
end
end
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