how to calculate by tol and while loop

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shiv gaur
shiv gaur il 17 Feb 2022
Modificato: Walter Roberson il 17 Feb 2022
k0=(2*pi/0.6328)*1e6;
t2=1.5e-6;
n1=1.512;n2=1.521;
x=2; % approximation
k1=k0*sqrt(n1^2-x.^2);k2=k0*sqrt(n2^2-x.^2);
tol = 1e-12;
n = 1;
while (n<=200)
y =-(k2).*t2+atan(k1./1i*k2)
if abs(ynew-y) < tol, break; end
x =xnew;
k1=k0*sqrt(n1^2-x.^2);
k2=k0*sqrt(n2^2-x.^2);
n=n+1;
end
disp(xnew)
how to use while loop in this program and f(abs ) value use

Risposte (1)

Voss
Voss il 17 Feb 2022
Your while loop might have a structure like this:
tol = 1e-12;
err = Inf;
n = 1;
while n <= 200 && err > tol
% get new estimate (of whatever you are trying to calculate)
% calculate updated error, err
n = n+1;
end
disp(n)
201
  1 Commento
shiv gaur
shiv gaur il 17 Feb 2022
Modificato: Walter Roberson il 17 Feb 2022
k0=(2*pi/0.6328)*1e6;
t2=1.5e-6;
n1=1.512;n2=1.521
k1=k0*sqrt(n1^2-x^2);
k2=k0*sqrt(n2^2-x^2);
y=-(k2)*t2+atan(k1/1i*k2)
sir we have to find the value of x from k1,k2 ,y equation so I am not able
so pl apply this in program

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