t1 = 0; %initial condition y(t1) = y1
y1 = 1; %initial condition
h = .01; %step size

tend = 10; %end time

t = t1:h:10; %vector of time points

N = length(t);

y = zeros(1,N); %creates a vector of length N of zeroes

y(1) = y1; %apply initial condition

for i=2:N
   s = myf(t(i-1),y(i-1));
   y(i) = y(i-1) + h*s;
end

%plot the results
plot(t,y,'color','red');
%set the font size
xlabel('t','fontsize',15);
ylabel('y','fontsize',15);
set(gca,'fontsize',15);