How to find intersection point between plot (x,aww) and plot (xt,yt)

 x=[1:100];
x=x(ones (1,100),:);
aww=zeros(100);
for i=1:100;
    j=1:100;
    y=linspace(1,10,100);
aww(i,j)=y(1,i);
end 
 plot(x,aww);
  xlim([-10 110]);
ylim([-1 15]);
hold on
xt=20:80;
yt=ones(1, length(xt))*5;
plot (xt,yt);

Answer 1

[Ameer Hamza]

See this FEX package: https://www.mathworks.com/matlabcentral/fileexchange/22441-curve-intersections

[CHRISTOPHER S]

This not working I tried