# MATLAB: How to gather all the values from a loop into an array

arrayfor loop

Hi,
I was wondering how can I gather all the values into an array because I need to plot the answer later. This is part of the code I am writing:
``for i=x0:h1:xx-h1 % Where h1 is the step size    y1=y1+dy(i,y1)*h1;    i=i+h1;end``
If someone knows, please let me know! Thanks!

``i=x0:h1:xx-h1;                          % Where h1 is the step sizey1v = zeros(size(i));                   % Preallocatefor k = 1:numel(i)    y1=y1+dy(i,y1(k))*h1;    y1v(k) = y1;end``
``figureplot(i, y1v)grid``
``yi=@(x)exp(1/3*x.^3-1.2*x);dy=@(x,y)y*x.^2-1.2*y;x0=0; xx=2; y1=1; y2=1;xp=[0:0.01:2]; h1=0.25;h2=0.1;i1=x0:h1:xx-h1;                          % Where h1 is the step sizey1v = zeros(size(i1));                   % Preallocatefor k = 1:numel(i1)    y1=y1+dy(i1(k),y1)*h1;    y1v(k) = y1;endi2=x0:h2:xx-h2;                          % Where h2 is the step sizey2v = zeros(size(i2));                   % Preallocatefor k = 1:numel(i1)    y2=y2+dy(i2(k),y2)*h2;    y2v(k) = y2;end figureplot(i1, y1v,    i2, y2v)grid``