C

n=sqrt(3.1437117-0.015620045*pow(x,2)+0.031893839*pow(x,-2)+0.0017196133*pow(x,-4)-9.6995128e-05*pow(x,-6)+1.1680925e-05*pow(x,-8))

Python

n=(3.1437117-0.015620045*x**2+0.031893839*x**-2+0.0017196133*x**-4-9.6995128e-05*x**-6+1.1680925e-05*x**-8)**.5

Fortran

n=SQRT(3.1437117-0.015620045*x**2+0.031893839*x**-2+0.0017196133*x**-4-9.6995128e-05*x**-6+1.1680925e-05*x**-8)

MATLAB

n=sqrt(3.1437117-0.015620045.*x.^2+0.031893839.*x.^-2+0.0017196133.*x.^-4-9.6995128e-05.*x.^-6+1.1680925e-05.*x.^-8)

LaTeX

n^2=3.1437117-0.015620045λ^{2}+0.031893839λ^{-2}+0.0017196133λ^{-4}-9.6995128\text{×}10^{-05}λ^{-6}+1.1680925\text{×}10^{-05}λ^{-8}