Array don't store value?
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I tried to use improve euler method but they array only start the starting value doesn't store the rest of the estimation. Only plot one point intead of going from -0.5 to pi.
f = @(t,y) y*tan(t) + sin(t);
y01 = -0.5;
t01 = 0;
t11 = pi;
h=0.1;
n = linspace(t01,t11,h);
t = (1:length(n));
y = (1:length(n));
y(1) = y01;
t(1) =t01;
for i = 1:(numel(n)-1)
t(i+1) = t(i)+h;
yp = y(i)+h*f(t(i),y(i));
y(i+1) = y(i)+h/2 * (f(t(i),y(i))+f(t(i+1),yp));
end
plot(t,y,"x");
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