C

n=sqrt(1+1.85484904/(1-0.0134621486/pow(x,2))+0.396194484/(1-0.0631945361/pow(x,2))+2.43512461/(1-170.864886/pow(x,2)))

Python

n=(1+1.85484904/(1-0.0134621486/x**2)+0.396194484/(1-0.0631945361/x**2)+2.43512461/(1-170.864886/x**2))**.5

Fortran

n=SQRT(1+1.85484904/(1-0.0134621486/x**2)+0.396194484/(1-0.0631945361/x**2)+2.43512461/(1-170.864886/x**2))

MATLAB

n=sqrt(1+1.85484904./(1-0.0134621486./x.^2)+0.396194484./(1-0.0631945361./x.^2)+2.43512461./(1-170.864886./x.^2))

LaTeX

n^2-1=\frac{1.85484904λ^2}{λ^2-0.0134621486}+\frac{0.396194484λ^2}{λ^2-0.0631945361}+\frac{2.43512461λ^2}{λ^2-170.864886}