slightly off euler method code
Show older comments
This code works when I call it, but the answer is so off that I think I did something wrong.
function [t,y] = eulerMethod(f, dt, Tf, t0, y0)
t(1) = t0;
y(1) = y0;
numSteps = (Tf - t0)/dt;
for ind=1:numSteps
m = f(t(ind),y(ind));
t(ind+1) = t(ind)+dt*f(Tf);
y(ind+1) = y(ind)+dt*m;
ind = ind+1;
end
end
I called it for the following function, but Euler gave an answer in the four thousands when f(2) is close to 6. Any help or guidance would be appreciated.
f = @(t,y) exp(t) - t;
fSol = @(t) exp(t) - t.^2/2;
[t,y]= eulerMethod(f,0.2,2,0,1)
euler = vpa(y(end))
f(2)
Accepted Answer
More Answers (0)
Categories
Find more on Startup and Shutdown in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!