why not able to plot size of both same

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shiv gaur
shiv gaur 2022-2-16
回答： Image Analyst 2022-2-16
k0=(2*pi/0.6328)*1e6;
t2=1.5e-6;
n1=1.512;n2=1.521;n3=4.1-1i*0.211;
n4=1;
m=0;
x=2;
t3=linspace(1e-9,1e-6,20)
k1=k0*sqrt(n1^2-x.^2);k2=k0*sqrt(n2^2-x.^2);
k3=k0*sqrt(n3^2-x^2);
k4=k0*sqrt(n4^2-x.^2);
tol = 1e-12;
n = 1;
while (n<=200)
x_new =-(k2).*t2+atan(k1./1i*k2)+atan((k3./k2).*tan(atan(k4./1i*k2)-k3.*t3))+m*pi;
if abs(x_new-x) < tol, break; end
x =x_new;
k1=k0*sqrt(n1^2-x.^2);
k2=k0*sqrt(n2^2-x.^2);
k3=k0*sqrt(n3^2-x.^2);
k4=k0*sqrt(n4^2-x.^2);
n=n+1;
end
disp(x_new)
plot(t3,real(x_new))
size is same but not able to plot.
  1 个评论
shiv gaur
shiv gaur 2022-2-16
k0=(2*pi/0.6328)*1e6;
t2=1.5e-6;
n1=1.512;n2=1.521;n3=4.1-1i*0.211;
n4=1;
m=0;
x=2;
t3=linspace(1e-9,1e-6,20)
k1=k0*sqrt(n1^2-x.^2);k2=k0*sqrt(n2^2-x.^2);
k3=k0*sqrt(n3^2-x^2);
k4=k0*sqrt(n4^2-x.^2);
tol = 1e-12;
n = 1;
while (n<=200)
x_new =-(k2).*t2+atan(k1./1i*k2)+atan((k3./k2).*tan(atan(k4./1i*k2)-k3.*t3))+m*pi;
if abs(x_new-x) < tol, break; end
x =x_new;
k1=k0*sqrt(n1^2-x.^2);
k2=k0*sqrt(n2^2-x.^2);
k3=k0*sqrt(n3^2-x.^2);
k4=k0*sqrt(n4^2-x.^2);
n=n+1;
end
disp(x_new)
plot(t3,real(x_new))
edit program

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采纳的回答

Image Analyst
Image Analyst 2022-2-16
Break this up into simpler terms before combining them.
x_new =-(k2).*t2+atan(k1./1i*k2)+atan((k3./k2).*tan(atan(k4./1i*k2)-k3.*t3))+m*pi;
It will help you figure out what the problem is.
k0=(2*pi/0.6328)*1e6;
t2=1.5e-6;
n1=1.512;n2=1.521;n3=4.1-1i*0.211;
n4=1;
m=0;
x=2;
t3=linspace(1e-9,1e-6,20)
k1=k0*sqrt(n1^2-x.^2);
k2=k0*sqrt(n2^2-x.^2);
k3=k0*sqrt(n3^2-x^2);
k4=k0*sqrt(n4^2-x.^2);
tol = 1e-12;
n = 1;
while (n<=200)
term1 =-(k2) .* t2 + atan(k1 ./ 1i*k2);
term2 = +atan(k3./k2)
term3 = atan(k4./1i*k2) -k3 .* t3;
term4 = tan(term3) + m*pi;
x_new = term1 + term2 .* term4;
% x_new =-(k2).*t2+atan(k1./1i*k2)+atan((k3./k2).*tan(atan(k4./1i*k2)-k3.*t3))+m*pi;
if abs(x_new-x) < tol, break; end
x =x_new;
k1=k0*sqrt(n1^2-x.^2);
k2=k0*sqrt(n2^2-x.^2);
k3=k0*sqrt(n3^2-x.^2);
k4=k0*sqrt(n4^2-x.^2);
n=n+1;
end
disp(x_new)
plot(t3,real(x_new))
I suspect the problem is in the latter part of term1. What do you want tin the denominator there? Did you forget some parentheses?

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