C

n=sqrt(2.53132391-0.00865579054*pow(x,2)+0.0142829487*pow(x,-2)-0.000115110582*pow(x,-4)+4.15511576e-05*pow(x,-6)-1.9869836e-06*pow(x,-8))

Python

n=(2.53132391-0.00865579054*x**2+0.0142829487*x**-2-0.000115110582*x**-4+4.15511576e-05*x**-6-1.9869836e-06*x**-8)**.5

Fortran

n=SQRT(2.53132391-0.00865579054*x**2+0.0142829487*x**-2-0.000115110582*x**-4+4.15511576e-05*x**-6-1.9869836e-06*x**-8)

MATLAB

n=sqrt(2.53132391-0.00865579054.*x.^2+0.0142829487.*x.^-2-0.000115110582.*x.^-4+4.15511576e-05.*x.^-6-1.9869836e-06.*x.^-8)

LaTeX

n^2=2.53132391-0.00865579054λ^{2}+0.0142829487λ^{-2}-0.000115110582λ^{-4}+4.15511576\text{×}10^{-05}λ^{-6}-1.9869836\text{×}10^{-06}λ^{-8}