Pointer with handle function. Error Maximum recursion limit of 500 reached

Hi guys, I'll be very thankful if someone helps me with this problem: "??? Maximum recursion limit of 500 reached. Use set(0,'RecursionLimit',N) to change the limit. Be aware that exceeding your available stack space can crash MATLAB and/or your computer." I am trying to create one recursive function with pointer using handle function. This is my code:

function [f]=fun_f(Ms,S)

f=fun_f(Ms,S); x=Ms(:,2); y= Ms(:,5); z= Ms(:,8); f={@(cx,cy,cz) fun_f(s,x,y,z,cx,cy,cz)};% function handle cell-array

 for i=1:50    
  f=fun_f(f,x,y,z,@cx,@cy,@cz)  
end
end

function [S,Ms]=fun_s(s,x,y,z,cx,cy, dcx,dcy)

cz=s; s=s'; dcx=dcx'; dcy=dcy';cx=cx';cy=cy'; m=1:1:8; s = meshgrid(s(:,1),1:size(s,1)); s = s(:); cx = meshgrid(cx(:,1),1:size(cx,1)); cx= cx(:); cy = meshgrid(cy(:,1),1:size(cy,1)); cy= cy(:); dcx = meshgrid(dcx(:,1),1:size(dcx,1)); dcx=dcx(:); dcy = meshgrid(dcy(:,1),1:size(dcy,1)); dcy=dcy(:);

Ms = meshgrid(s(:),1:size(m,2)); Ms=Ms'; Ms(:,2 ) = x(:)+ Ms(:,2 ); Ms(:,3 ) = cx(:)+ Ms(:,3 ); Ms(:,4 ) = dcx(:)+ Ms(:,4 ); Ms(:,5 ) = y(:)+ Ms(:,5 ); Ms(:,6 ) = cy(:)+ Ms(:,6 ); Ms(:,7 ) = dcy(:)+ Ms(:,7 ); Ms(:,8 ) = z(:)+ Ms(:,8 ); S = (Ms(:,2 )-Ms(:,3)).*Ms(:,4)+(Ms(:,5)-Ms(:,6)).*Ms(:,7)+Ms(:,8); end

clear all; close all; r =1; [M1] =[];[Mt] =[];[x] =[];[y] =[];[z] =[]; C_1=[]; Z =0; cz =linspace(0,4,10); s =cz; cx =cz.^2+cz; cy =sin(cz)*0; order=length(cx)-1; [dcx]=polyderiva(polycenter(s, cx, order),s); [dcy]=polyderiva(polycenter(s, cy, order),s);

for l=1:length(cz) N = size(cz,2); [M] =TranslationMatrix(dcx(l),dcy(l)); [X,Y]=circle(r,length(cz)); C =[cx(l); cy(l); cz(l)]'; M_1 =(TranslationMatrix(dcx(l),dcy(l))*[X ;Y; zeros(length(X),1)'])'+repmat(C,N,1); M1 =[M1; M_1]; x =M1(:,1); y =M1(:,2); z =M1(:,3); plot3(M1(:,1),M1(:,2),M1(:,3));hold on;axis square; plot3(cx,cy,cz, 'r'); view([0 0]);xlim([0 20]);ylim([0 20]);zlim([0 20]); pause(0.5); end

[S,Ms]=fun_s(s,x,y,z,cx,cy, dcx,dcy); [f]=fun_f(Ms,S)

Thankyou

Answer 1

[Naga]

It looks like your function is getting stuck in a loop because it keeps calling itself without a way to stop. MATLAB has a limit on how many times a function can call itself, and you're hitting that limit.

To fix it add a bases case to ensure the function has a termination condition:

function [f] = fun_f(Ms, S, depth)    
    if depth <= 0
        f = []; % Base case result
        return;
    end
    % Recursive call with depth decrement
    f = fun_f(Ms, S, depth - 1);end
end

Increase the recursion limit cauticiously Temporarily increase the limit if necessary just be careful, too much recursion can crash things!

set(0, 'RecursionLimit', 5000);

Consider using iterative methods to avoid deep recursion. By implementing a base case and cautiously adjusting the recursion limit, you can prevent the error without risking a stack overflow.