C

n=sqrt(1+0.996356844/(1-0.0144821587/pow(x,2))+0.651392837/(1-0.00154826389/pow(x,2))+1.22432622/(1-89.9818604/pow(x,2)))

Python

n=(1+0.996356844/(1-0.0144821587/x**2)+0.651392837/(1-0.00154826389/x**2)+1.22432622/(1-89.9818604/x**2))**.5

Fortran

n=SQRT(1+0.996356844/(1-0.0144821587/x**2)+0.651392837/(1-0.00154826389/x**2)+1.22432622/(1-89.9818604/x**2))

MATLAB

n=sqrt(1+0.996356844./(1-0.0144821587./x.^2)+0.651392837./(1-0.00154826389./x.^2)+1.22432622./(1-89.9818604./x.^2))

LaTeX

n^2-1=\frac{0.996356844λ^2}{λ^2-0.0144821587}+\frac{0.651392837λ^2}{λ^2-0.00154826389}+\frac{1.22432622λ^2}{λ^2-89.9818604}