use of arrays in variable
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function y=f(kx)
l=6330*(10)^(-10);
k0=2*pi/l;
nc=1.33;
ec=nc^2;
na=1.43;
ea=na^2;
nf=1.59;
ef=nf^2;
nm=0.064+1i*4;
em=nm^2;
ns=1.495;
es=ns^2;
df=0.5e-6;
dm=0.03e-6;
%da=0.06e-6;
%kx=(2*pi/l)*np*sin(a);
kc=k0*sqrt(x^2-ec);
ka=k0*sqrt(ea-x^2);
kf=k0*sqrt(ef-x^2);
km=k0*sqrt(em-x^2);
ks=k0*sqrt(x^2-es);
rfm=(kf-km)/(kf+km);
rms=(km-ks)/(ks+km);
rfa=(kf-ka)/(kf+ka);
rac=(ka-kc)/(ka+kc);
a=(1-rfm)/(1+rfm);
b=(1-rms*exp(2*1i*dm*km))/(1+rms*exp(2*1i*dm*km));
c=(1-rfa)/(1+rfa);
f=(1-rac*exp(2*1i*da*ka))/(1+rac*exp(2*1i*da*ka));
pfms=2*atan(1i*a*b);
pfac=2*atan(1i*c*f);
y=2*kf*df-pfms-pfac;
end
this is the simple function program we have to calculate the value of df/ddna ie chane in f/change in na vs da
how to use this program
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