C

n=sqrt(3.09503-0.012322111*pow(x,2)+0.043740379*pow(x,-2)+0.0024511569*pow(x,-4)-9.9218754e-05*pow(x,-6)+2.3715962e-05*pow(x,-8))

Python

n=(3.09503-0.012322111*x**2+0.043740379*x**-2+0.0024511569*x**-4-9.9218754e-05*x**-6+2.3715962e-05*x**-8)**.5

Fortran

n=SQRT(3.09503-0.012322111*x**2+0.043740379*x**-2+0.0024511569*x**-4-9.9218754e-05*x**-6+2.3715962e-05*x**-8)

MATLAB

n=sqrt(3.09503-0.012322111.*x.^2+0.043740379.*x.^-2+0.0024511569.*x.^-4-9.9218754e-05.*x.^-6+2.3715962e-05.*x.^-8)

LaTeX

n^2=3.09503-0.012322111λ^{2}+0.043740379λ^{-2}+0.0024511569λ^{-4}-9.9218754\text{×}10^{-05}λ^{-6}+2.3715962\text{×}10^{-05}λ^{-8}