C

n=sqrt(2.5720683-0.010564186*pow(x,2)+0.015625643*pow(x,-2)+0.00040593207*pow(x,-4)-1.3424134e-05*pow(x,-6)+6.4355621e-07*pow(x,-8))

Python

n=(2.5720683-0.010564186*x**2+0.015625643*x**-2+0.00040593207*x**-4-1.3424134e-05*x**-6+6.4355621e-07*x**-8)**.5

Fortran

n=SQRT(2.5720683-0.010564186*x**2+0.015625643*x**-2+0.00040593207*x**-4-1.3424134e-05*x**-6+6.4355621e-07*x**-8)

MATLAB

n=sqrt(2.5720683-0.010564186.*x.^2+0.015625643.*x.^-2+0.00040593207.*x.^-4-1.3424134e-05.*x.^-6+6.4355621e-07.*x.^-8)

LaTeX

n^2=2.5720683-0.010564186λ^{2}+0.015625643λ^{-2}+0.00040593207λ^{-4}-1.3424134\text{×}10^{-05}λ^{-6}+6.4355621\text{×}10^{-07}λ^{-8}