C

n=sqrt(2.7135839-0.011419719*pow(x,2)+0.026133708*pow(x,-2)+0.0017576479*pow(x,-4)-0.00013307737*pow(x,-6)+1.5203351e-05*pow(x,-8))

Python

n=(2.7135839-0.011419719*x**2+0.026133708*x**-2+0.0017576479*x**-4-0.00013307737*x**-6+1.5203351e-05*x**-8)**.5

Fortran

n=SQRT(2.7135839-0.011419719*x**2+0.026133708*x**-2+0.0017576479*x**-4-0.00013307737*x**-6+1.5203351e-05*x**-8)

MATLAB

n=sqrt(2.7135839-0.011419719.*x.^2+0.026133708.*x.^-2+0.0017576479.*x.^-4-0.00013307737.*x.^-6+1.5203351e-05.*x.^-8)

LaTeX

n^2=2.7135839-0.011419719λ^{2}+0.026133708λ^{-2}+0.0017576479λ^{-4}-0.00013307737λ^{-6}+1.5203351\text{×}10^{-05}λ^{-8}