C

n=sqrt(1+1.22393171/(1-0.00649521083/pow(x,2))+0.306482383/(1-0.0208194161/pow(x,2))+0.823950901/(1-79.5168951/pow(x,2)))

Python

n=(1+1.22393171/(1-0.00649521083/x**2)+0.306482383/(1-0.0208194161/x**2)+0.823950901/(1-79.5168951/x**2))**.5

Fortran

n=SQRT(1+1.22393171/(1-0.00649521083/x**2)+0.306482383/(1-0.0208194161/x**2)+0.823950901/(1-79.5168951/x**2))

MATLAB

n=sqrt(1+1.22393171./(1-0.00649521083./x.^2)+0.306482383./(1-0.0208194161./x.^2)+0.823950901./(1-79.5168951./x.^2))

LaTeX

n^2-1=\frac{1.22393171λ^2}{λ^2-0.00649521083}+\frac{0.306482383λ^2}{λ^2-0.0208194161}+\frac{0.823950901λ^2}{λ^2-79.5168951}