x = input('X? ');
n = input('Degree? ');

for i=0:1:n
    z = cos0approx(x, i);
    zPrev = cos0approx(x, i-1);
    true = cos(x);
    absEr = abs(true - z);
    
    disp('The value is:');
    disp(z);
    
    disp('The true error is:');
    disp(absEr);
    
    perRel = (absEr/cos(x)) * 100;
    disp('The percent relative true error is:');
    disp(perRel);
    
    if i > 0
        approxE = abs(zPrev - z);
        disp('The approximate error is:');
        disp(approxE);
        
        approxEPer = abs(((zPrev - z) / z) * 100);
        disp('The percent relative approximate error is:');
        disp(approxEPer);
    end
       
end