Not all Subplots are plotting

This is my function: Only the last subplot is plotting. I have been passing in: hold on first(0, 10, 0.1, 4);

function first(start, finish, a, h)

%Declare initial values with respect to the function. x =start:h:finish; y = zeros(1, length(x)); y(1) = 1; n=1;

%To create as many subplots as there are increment values (and later, one more for the analytical solution): for j = 1:a

    %Change h to change increment for each subplot. 
    if j>=2
        h=h/10;
    end

    while x(n)<=finish
        %while x value does not exceed the maximum x value
        y(n+1) = y(n)+(-4 * (x(n).^3) * (y(n).^2))*h;
        % x(n+1) = x(n) + h;
        n = n+1;

    end

    print j
    xlabel('x axis')
    ylabel('y axis')
    title('Graph')
    subplot(5, 1, j);  plot(x, y, '--')

end

%Now compare with analytical solutions: y(x) = 1/(x^4+1). subplot(5, 1, 5); x =start:0.1:finish; yaccurate = 1\(x.^4 +1); xlabel('x axis') ylabel('y axis') title('Analytical Solution') plot(x, yaccurate, 'g')

hold off

Answer 1

[Sara]

you have for j = 1:a with a = 0.1, i.e. it never enters the loop