C

n=sqrt(2.48951-0.01224496*pow(x,2)+0.01294262*pow(x,-2)+0.0003490449*pow(x,-4)-1.777228e-05*pow(x,-6)+9.113719e-07*pow(x,-8))

Python

n=(2.48951-0.01224496*x**2+0.01294262*x**-2+0.0003490449*x**-4-1.777228e-05*x**-6+9.113719e-07*x**-8)**.5

Fortran

n=SQRT(2.48951-0.01224496*x**2+0.01294262*x**-2+0.0003490449*x**-4-1.777228e-05*x**-6+9.113719e-07*x**-8)

MATLAB

n=sqrt(2.48951-0.01224496.*x.^2+0.01294262.*x.^-2+0.0003490449.*x.^-4-1.777228e-05.*x.^-6+9.113719e-07.*x.^-8)

LaTeX

n^2=2.48951-0.01224496λ^{2}+0.01294262λ^{-2}+0.0003490449λ^{-4}-1.777228\text{×}10^{-05}λ^{-6}+9.113719\text{×}10^{-07}λ^{-8}