C

n=sqrt(2.5844463-0.0090521858*pow(x,2)+0.014301987*pow(x,-2)+0.0001705077*pow(x,-4)+4.964536e-06*pow(x,-6)-1.2927479e-07*pow(x,-8))

Python

n=(2.5844463-0.0090521858*x**2+0.014301987*x**-2+0.0001705077*x**-4+4.964536e-06*x**-6-1.2927479e-07*x**-8)**.5

Fortran

n=SQRT(2.5844463-0.0090521858*x**2+0.014301987*x**-2+0.0001705077*x**-4+4.964536e-06*x**-6-1.2927479e-07*x**-8)

MATLAB

n=sqrt(2.5844463-0.0090521858.*x.^2+0.014301987.*x.^-2+0.0001705077.*x.^-4+4.964536e-06.*x.^-6-1.2927479e-07.*x.^-8)

LaTeX

n^2=2.5844463-0.0090521858λ^{2}+0.014301987λ^{-2}+0.0001705077λ^{-4}+4.964536\text{×}10^{-06}λ^{-6}-1.2927479\text{×}10^{-07}λ^{-8}