C

n=sqrt(1+2.0245976/(1-0.0147053225/pow(x,2))+0.470187196/(1-0.0692998276/pow(x,2))+2.59970433/(1-161.817601/pow(x,2)))

Python

n=(1+2.0245976/(1-0.0147053225/x**2)+0.470187196/(1-0.0692998276/x**2)+2.59970433/(1-161.817601/x**2))**.5

Fortran

n=SQRT(1+2.0245976/(1-0.0147053225/x**2)+0.470187196/(1-0.0692998276/x**2)+2.59970433/(1-161.817601/x**2))

MATLAB

n=sqrt(1+2.0245976./(1-0.0147053225./x.^2)+0.470187196./(1-0.0692998276./x.^2)+2.59970433./(1-161.817601./x.^2))

LaTeX

n^2-1=\frac{2.0245976λ^2}{λ^2-0.0147053225}+\frac{0.470187196λ^2}{λ^2-0.0692998276}+\frac{2.59970433λ^2}{λ^2-161.817601}