"Undefined function 'rk' for input arguments of type 'inline'." error
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function r = rk(a, b, h, f)
n = (b-a)/h;
t = a;
w = 1/3;
for i = 1:n
kone = h * f(t,w);
ktwo = h * f(t+h/2,w+kone/2);
kthr = h * f(t+h/2,w+ktwo/2);
kfou = h * f(t+h,w+kthr);
w = w + (kone + 2*ktwo + 2*kthr + kfou)/6;
t = a + i*h;
fprintf('w=%f t=%f\n',w,t);
end
r = 0;
why does it always give me an error? my other function has exactly the same structure as this one and it works!!!!
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Accepted Answer
Walter Roberson
on 4 Dec 2012
Make sure that this is stored in rk.m and that the file is on your MATLAB path. Use
which -all rk
to see if it is on your path.
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