C

n=1+0.0148956/(180.7-pow(x,-2))+0.0049037/(92-pow(x,-2))

Python

n=1+0.0148956/(180.7-x**-2)+0.0049037/(92-x**-2)

Fortran

n=1+0.0148956/(180.7-x**-2)+0.0049037/(92-x**-2)

MATLAB

n=1+0.0148956./(180.7-x.^-2)+0.0049037./(92-x.^-2)

LaTeX

n-1=\frac{0.0148956}{180.7-λ^{-2}}+\frac{0.0049037}{92-λ^{-2}}