how do make the integral a vector

integral = 0

for i = 1:n

r_left = (a+(i-1)*h);

r_right = (a+i*h);

% Functions

f_left = f(r_left);

f_right = f(r_right);

% Integral

integral = integral+(h/2)*(f_left+f_right)

end

[madhan ravi]

completely vague

Answer 1

[madhan ravi]

integral=cell(1,n);
integral{1}=0;
for i = 2:n
          r_left = (a+(i-1)*h);
          r_right = (a+i*h);
          % Functions   
          f_left = f(r_left);
          f_right = f(r_right);
          % Integral
          integral{i} =  integral{i-1}+(h/2)*(f_left+f_right) %put {i} next to integral to avoid overwriting 
end
celldisp(integral) %to view values
integral = cell2mat(integral) %to convert to double array