C

n=sqrt(7.12996+0.26073/(pow(x,2)-0.04627)+127.335/(pow(x,2)-258.431))

Python

n=(7.12996+0.26073/(x**2-0.04627)+127.335/(x**2-258.431))**.5

Fortran

n=SQRT(7.12996+0.26073/(x**2-0.04627)+127.335/(x**2-258.431))

MATLAB

n=sqrt(7.12996+0.26073./(x.^2-0.04627)+127.335./(x.^2-258.431))

LaTeX

n^2=7.12996+\frac{0.26073}{λ^2-0.04627}+\frac{127.335}{λ^2-258.431}