C

n=sqrt(2.842085+0.01641576*pow(x,2)+0.05206046*pow(x,-2)-0.002610463*pow(x,-4)+0.000446977*pow(x,-6)-9.429829e-06*pow(x,-8))

Python

n=(2.842085+0.01641576*x**2+0.05206046*x**-2-0.002610463*x**-4+0.000446977*x**-6-9.429829e-06*x**-8)**.5

Fortran

n=SQRT(2.842085+0.01641576*x**2+0.05206046*x**-2-0.002610463*x**-4+0.000446977*x**-6-9.429829e-06*x**-8)

MATLAB

n=sqrt(2.842085+0.01641576.*x.^2+0.05206046.*x.^-2-0.002610463.*x.^-4+0.000446977.*x.^-6-9.429829e-06.*x.^-8)

LaTeX

n^2=2.842085+0.01641576λ^{2}+0.05206046λ^{-2}-0.002610463λ^{-4}+0.000446977λ^{-6}-9.429829\text{×}10^{-06}λ^{-8}