C

n=sqrt(1+1.33183167/(1-0.00620023871/pow(x,2))+0.546623206/(1-0.0216465439/pow(x,2))+1.19084015/(1-82.5827736/pow(x,2)))

Python

n=(1+1.33183167/(1-0.00620023871/x**2)+0.546623206/(1-0.0216465439/x**2)+1.19084015/(1-82.5827736/x**2))**.5

Fortran

n=SQRT(1+1.33183167/(1-0.00620023871/x**2)+0.546623206/(1-0.0216465439/x**2)+1.19084015/(1-82.5827736/x**2))

MATLAB

n=sqrt(1+1.33183167./(1-0.00620023871./x.^2)+0.546623206./(1-0.0216465439./x.^2)+1.19084015./(1-82.5827736./x.^2))

LaTeX

n^2-1=\frac{1.33183167λ^2}{λ^2-0.00620023871}+\frac{0.546623206λ^2}{λ^2-0.0216465439}+\frac{1.19084015λ^2}{λ^2-82.5827736}