C

n=sqrt(2.45768+0.0098877/(pow(x,2)-0.026095)-0.013847*pow(x,2))

Python

n=(2.45768+0.0098877/(x**2-0.026095)-0.013847*x**2)**.5

Fortran

n=SQRT(2.45768+0.0098877/(x**2-0.026095)-0.013847*x**2)

MATLAB

n=sqrt(2.45768+0.0098877./(x.^2-0.026095)-0.013847.*x.^2)

LaTeX

n^2=2.45768+\frac{0.0098877}{λ^2-0.026095}-0.013847λ^{2}