C

n=sqrt(2.1094643-0.0048026812*pow(x,2)+0.0067645351*pow(x,-2)+8.3329962e-05*pow(x,-4)+3.4196126e-07*pow(x,-6)-8.4933854e-08*pow(x,-8))

Python

n=(2.1094643-0.0048026812*x**2+0.0067645351*x**-2+8.3329962e-05*x**-4+3.4196126e-07*x**-6-8.4933854e-08*x**-8)**.5

Fortran

n=SQRT(2.1094643-0.0048026812*x**2+0.0067645351*x**-2+8.3329962e-05*x**-4+3.4196126e-07*x**-6-8.4933854e-08*x**-8)

MATLAB

n=sqrt(2.1094643-0.0048026812.*x.^2+0.0067645351.*x.^-2+8.3329962e-05.*x.^-4+3.4196126e-07.*x.^-6-8.4933854e-08.*x.^-8)

LaTeX

n^2=2.1094643-0.0048026812λ^{2}+0.0067645351λ^{-2}+8.3329962\text{×}10^{-05}λ^{-4}+3.4196126\text{×}10^{-07}λ^{-6}-8.4933854\text{×}10^{-08}λ^{-8}