C

n=sqrt(1+3.6006+5.6912/(1-0.1437/pow(x,2))+1.1316/(1-700/pow(x,2)))

Python

n=(1+3.6006+5.6912/(1-0.1437/x**2)+1.1316/(1-700/x**2))**.5

Fortran

n=SQRT(1+3.6006+5.6912/(1-0.1437/x**2)+1.1316/(1-700/x**2))

MATLAB

n=sqrt(1+3.6006+5.6912./(1-0.1437./x.^2)+1.1316./(1-700./x.^2))

LaTeX

n^2-1=3.6006+\frac{5.6912λ^2}{λ^2-0.1437}+\frac{1.1316λ^2}{λ^2-700}