C

n=sqrt(1+0.945443081/(1-0.0157263798/pow(x,2))+0.643237376/(1-0.00161924066/pow(x,2))+1.17752968/(1-121.361748/pow(x,2)))

Python

n=(1+0.945443081/(1-0.0157263798/x**2)+0.643237376/(1-0.00161924066/x**2)+1.17752968/(1-121.361748/x**2))**.5

Fortran

n=SQRT(1+0.945443081/(1-0.0157263798/x**2)+0.643237376/(1-0.00161924066/x**2)+1.17752968/(1-121.361748/x**2))

MATLAB

n=sqrt(1+0.945443081./(1-0.0157263798./x.^2)+0.643237376./(1-0.00161924066./x.^2)+1.17752968./(1-121.361748./x.^2))

LaTeX

n^2-1=\frac{0.945443081λ^2}{λ^2-0.0157263798}+\frac{0.643237376λ^2}{λ^2-0.00161924066}+\frac{1.17752968λ^2}{λ^2-121.361748}