C

n=sqrt(1+1.87543831/(1-0.0141749518/pow(x,2))+0.37375749/(1-0.0640509927/pow(x,2))+2.30001797/(1-177.389795/pow(x,2)))

Python

n=(1+1.87543831/(1-0.0141749518/x**2)+0.37375749/(1-0.0640509927/x**2)+2.30001797/(1-177.389795/x**2))**.5

Fortran

n=SQRT(1+1.87543831/(1-0.0141749518/x**2)+0.37375749/(1-0.0640509927/x**2)+2.30001797/(1-177.389795/x**2))

MATLAB

n=sqrt(1+1.87543831./(1-0.0141749518./x.^2)+0.37375749./(1-0.0640509927./x.^2)+2.30001797./(1-177.389795./x.^2))

LaTeX

n^2-1=\frac{1.87543831λ^2}{λ^2-0.0141749518}+\frac{0.37375749λ^2}{λ^2-0.0640509927}+\frac{2.30001797λ^2}{λ^2-177.389795}