Kolleggerm1's comment moved here:
So I added a line to the for-loop to identify the max of i which seemed to solve the exceeding error, but now I get an error "Array indices must be positive integers or logical values" in line 10
clc; clear all;
h=0.25; % step size
xmin=0;
xmax=1;
x=xmin:h:xmax; %x boundaries
n=length(x);
y=zeros(1,n);% Initial condition
for i=1:n
i=0:1:4;
dy=(x(i+1)*y(i)+1);
x(i+1)=n*h;
y(i+1)=y(i)+h*dy;
end
figure(1)
hold on
plot (y,x,'b', 'linewidth',2)
title ('Forward Euler')
