C

n=sqrt(3.4407637-0.015750622*pow(x,2)+0.059024249*pow(x,-2)+0.0035647556*pow(x,-4)-0.00012641103*pow(x,-6)+4.0309245e-05*pow(x,-8))

Python

n=(3.4407637-0.015750622*x**2+0.059024249*x**-2+0.0035647556*x**-4-0.00012641103*x**-6+4.0309245e-05*x**-8)**.5

Fortran

n=SQRT(3.4407637-0.015750622*x**2+0.059024249*x**-2+0.0035647556*x**-4-0.00012641103*x**-6+4.0309245e-05*x**-8)

MATLAB

n=sqrt(3.4407637-0.015750622.*x.^2+0.059024249.*x.^-2+0.0035647556.*x.^-4-0.00012641103.*x.^-6+4.0309245e-05.*x.^-8)

LaTeX

n^2=3.4407637-0.015750622λ^{2}+0.059024249λ^{-2}+0.0035647556λ^{-4}-0.00012641103λ^{-6}+4.0309245\text{×}10^{-05}λ^{-8}