matlab - Two symbolic complex variable functions intersection -

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i have 2 symbolic complex variable functions , want find intersection of these functions.

   %% close all;clear; clc  x1=sym('x1','real'); x2=sym('x2','real'); x=x1+1i*x2; r=8;  s=1+1i; ck=0;  k=20:-1:0     ak=(k+1)*(k+1);     bk=-k*(k+1)+1i*2*k*r;     sk=bk-x-(ak*ck)/s;     s=sk;     ck=-2*r-1i*2*r*k; end  sk(x1,x2)=sk; f1(x1,x2)=real(sk(x1,x2)); f2(x1,x2)=imag(sk(x1,x2));  ezplot(f1); hold on; ezplot(f2); grid on;

graph of these functions , intersection

thanks.


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