C

n=sqrt(2.98193445-0.012659384*pow(x,2)+0.0370386685*pow(x,-2)+0.00296054842*pow(x,-4)-0.000481643932*pow(x,-6)+0.000114549779*pow(x,-8)-1.16507463e-05*pow(x,-10)+5.68089035e-07*pow(x,-12))

Python

n=(2.98193445-0.012659384*x**2+0.0370386685*x**-2+0.00296054842*x**-4-0.000481643932*x**-6+0.000114549779*x**-8-1.16507463e-05*x**-10+5.68089035e-07*x**-12)**.5

Fortran

n=SQRT(2.98193445-0.012659384*x**2+0.0370386685*x**-2+0.00296054842*x**-4-0.000481643932*x**-6+0.000114549779*x**-8-1.16507463e-05*x**-10+5.68089035e-07*x**-12)

MATLAB

n=sqrt(2.98193445-0.012659384.*x.^2+0.0370386685.*x.^-2+0.00296054842.*x.^-4-0.000481643932.*x.^-6+0.000114549779.*x.^-8-1.16507463e-05.*x.^-10+5.68089035e-07.*x.^-12)

LaTeX

n^2=2.98193445-0.012659384λ^{2}+0.0370386685λ^{-2}+0.00296054842λ^{-4}-0.000481643932λ^{-6}+0.000114549779λ^{-8}-1.16507463\text{×}10^{-05}λ^{-10}+5.68089035\text{×}10^{-07}λ^{-12}