C

n=sqrt(3.117837-0.0119410737*pow(x,2)+0.0443602265*pow(x,-2)+0.00181348056*pow(x,-4)+4.69669929e-06*pow(x,-6)+1.61754136e-05*pow(x,-8))

Python

n=(3.117837-0.0119410737*x**2+0.0443602265*x**-2+0.00181348056*x**-4+4.69669929e-06*x**-6+1.61754136e-05*x**-8)**.5

Fortran

n=SQRT(3.117837-0.0119410737*x**2+0.0443602265*x**-2+0.00181348056*x**-4+4.69669929e-06*x**-6+1.61754136e-05*x**-8)

MATLAB

n=sqrt(3.117837-0.0119410737.*x.^2+0.0443602265.*x.^-2+0.00181348056.*x.^-4+4.69669929e-06.*x.^-6+1.61754136e-05.*x.^-8)

LaTeX

n^2=3.117837-0.0119410737λ^{2}+0.0443602265λ^{-2}+0.00181348056λ^{-4}+4.69669929\text{×}10^{-06}λ^{-6}+1.61754136\text{×}10^{-05}λ^{-8}