C

n=sqrt(1+8.993/(1-pow(0.444/x,2))+0.308/(1-pow(25.0/x,2)))

Python

n=(1+8.993/(1-(0.444/x)**2)+0.308/(1-(25.0/x)**2))**.5

Fortran

n=SQRT(1+8.993/(1-(0.444/x)**2)+0.308/(1-(25.0/x)**2))

MATLAB

n=sqrt(1+8.993./(1-(0.444./x).^2)+0.308./(1-(25.0./x).^2))

LaTeX

n^2-1=\frac{8.993λ^2}{λ^2-0.444^2}+\frac{0.308λ^2}{λ^2-25.0^2}