C

n=sqrt(1.1320+2.0885*pow(x,2)/(pow(x,2)-0.0278)-0.0096*pow(x,2))

Python

n=(1.1320+2.0885*x**2/(x**2-0.0278)-0.0096*x**2)**.5

Fortran

n=SQRT(1.1320+2.0885*x**2/(x**2-0.0278)-0.0096*x**2)

MATLAB

n=sqrt(1.1320+2.0885.*x.^2./(x.^2-0.0278)-0.0096.*x.^2)

LaTeX

n^2=1.1320+\frac{2.0885λ^{2}}{λ^2-0.0278}-0.0096λ^{2}