C

n=sqrt(2.358+1.929*pow(x,2)/(pow(x,2)-0.05780))

Python

n=(2.358+1.929*x**2/(x**2-0.05780))**.5

Fortran

n=SQRT(2.358+1.929*x**2/(x**2-0.05780))

MATLAB

n=sqrt(2.358+1.929.*x.^2./(x.^2-0.05780))

LaTeX

n^2=2.358+\frac{1.929λ^{2}}{λ^2-0.05780}