C

n=1+1.181494e-4+9.708931e-3/(75.4-pow(x,-2))

Python

n=1+1.181494e-4+9.708931e-3/(75.4-x**-2)

Fortran

n=1+1.181494e-4+9.708931e-3/(75.4-x**-2)

MATLAB

n=1+1.181494e-4+9.708931e-3./(75.4-x.^-2)

LaTeX

n-1=1.181494\text{×}10^{-4}+\frac{9.708931\text{×}10^{-3}}{75.4-λ^{-2}}