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Cannot find where I am hitting recursion limit
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Hi, matlab continues to tell me that I am getting a recursion limit problem with this code and I can't seem to see where my code is over doing itself. If you could help, that would be great. For me, I used k = 19 and received the problem. Please note that the function phi(k) is not where the issue is coming from
function PR(k)
function out = phi(k)
out = phi(k);
end
if k > 1 && rem(k,1)==0
for i = 1:k
if rem(k,i)==0
y(i) = k./i;
else
y(i) = 1;
end
end
for m = 1:k
z(m) = mod(y(m).^y(m),k);
if mod(z(m)-1,phi(k))==0
w(m) = z(m);
else
w(m) = 1;
end
end
else
disp('Please make sure your input is an integer greater than 1');
end
end
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Respuestas (1)
Sean de Wolski
el 24 de Ag. de 2015
Editada: Sean de Wolski
el 24 de Ag. de 2015
The issue is indeed from calling phi(k)
function out = phi(k)
out = phi(k);
end
Calls itself infinitely and causes the recursion error.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/178177/image.png)
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2 comentarios
Sean de Wolski
el 26 de Ag. de 2015
It never gets to the end. It calls phi, i.e. itself, again and then jumps back into itself on the next iteration once again calling itself before reaching the end.
What do you actually want phi to do?
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