C

n=sqrt(1+1.97025325/(1-0.00991088134/pow(x,2))+0.30489414/(1-0.0383202295/pow(x,2))+1.39214665/(1-97.7785249/pow(x,2)))

Python

n=(1+1.97025325/(1-0.00991088134/x**2)+0.30489414/(1-0.0383202295/x**2)+1.39214665/(1-97.7785249/x**2))**.5

Fortran

n=SQRT(1+1.97025325/(1-0.00991088134/x**2)+0.30489414/(1-0.0383202295/x**2)+1.39214665/(1-97.7785249/x**2))

MATLAB

n=sqrt(1+1.97025325./(1-0.00991088134./x.^2)+0.30489414./(1-0.0383202295./x.^2)+1.39214665./(1-97.7785249./x.^2))

LaTeX

n^2-1=\frac{1.97025325λ^2}{λ^2-0.00991088134}+\frac{0.30489414λ^2}{λ^2-0.0383202295}+\frac{1.39214665λ^2}{λ^2-97.7785249}