How to find all the intersections of two lines.
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I've written a code to plot two equations but I'm trying to find the value of my variable t where the two equations intersect at the nine points. Does anyone know how I would tell matlab to find the solution at these nine points. The following is my code
>> a=20*10^(-6);
n1=1.455;
n2=1.440;
lambda=900*10^(-9);
k=2*pi/lambda;
k1=k*n1;
syms t;
phim=2*a*k1*cos(t);
eqls=tan(0.5*phim);
eqrs=sqrt(sin(t)^2-(n2/n1)^2)/cos(t);
hold on
ezplot(eqrs,[81.75*pi/180,pi/2])
ezplot(eqls,[81.75*pi/180,pi/2])
ylim([0,10])
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