C

n=sqrt(2.69546608-0.00946960473*pow(x,2)-0.000110686762*pow(x,4)+0.0190535266*pow(x,-2)+0.000349767067*pow(x,-4)+1.61235917e-06*pow(x,-6)+1.06076791e-06*pow(x,-8))

Python

n=(2.69546608-0.00946960473*x**2-0.000110686762*x**4+0.0190535266*x**-2+0.000349767067*x**-4+1.61235917e-06*x**-6+1.06076791e-06*x**-8)**.5

Fortran

n=SQRT(2.69546608-0.00946960473*x**2-0.000110686762*x**4+0.0190535266*x**-2+0.000349767067*x**-4+1.61235917e-06*x**-6+1.06076791e-06*x**-8)

MATLAB

n=sqrt(2.69546608-0.00946960473.*x.^2-0.000110686762.*x.^4+0.0190535266.*x.^-2+0.000349767067.*x.^-4+1.61235917e-06.*x.^-6+1.06076791e-06.*x.^-8)

LaTeX

n^2=2.69546608-0.00946960473λ^{2}-0.000110686762λ^{4}+0.0190535266λ^{-2}+0.000349767067λ^{-4}+1.61235917\text{×}10^{-06}λ^{-6}+1.06076791\text{×}10^{-06}λ^{-8}