C

n=sqrt(3.29100+0.04140/(pow(x,2)-0.03978)+9.35522/(pow(x,2)-31.45571))

Python

n=(3.29100+0.04140/(x**2-0.03978)+9.35522/(x**2-31.45571))**.5

Fortran

n=SQRT(3.29100+0.04140/(x**2-0.03978)+9.35522/(x**2-31.45571))

MATLAB

n=sqrt(3.29100+0.04140./(x.^2-0.03978)+9.35522./(x.^2-31.45571))

LaTeX

n^2=3.29100+\frac{0.04140}{λ^2-0.03978}+\frac{9.35522}{λ^2-31.45571}