C

n=sqrt(2.5801121-0.0079717945*pow(x,2)+0.019728054*pow(x,-2)+0.00013876076*pow(x,-4)+3.7632071e-05*pow(x,-6)-7.4634717e-07*pow(x,-8))

Python

n=(2.5801121-0.0079717945*x**2+0.019728054*x**-2+0.00013876076*x**-4+3.7632071e-05*x**-6-7.4634717e-07*x**-8)**.5

Fortran

n=SQRT(2.5801121-0.0079717945*x**2+0.019728054*x**-2+0.00013876076*x**-4+3.7632071e-05*x**-6-7.4634717e-07*x**-8)

MATLAB

n=sqrt(2.5801121-0.0079717945.*x.^2+0.019728054.*x.^-2+0.00013876076.*x.^-4+3.7632071e-05.*x.^-6-7.4634717e-07.*x.^-8)

LaTeX

n^2=2.5801121-0.0079717945λ^{2}+0.019728054λ^{-2}+0.00013876076λ^{-4}+3.7632071\text{×}10^{-05}λ^{-6}-7.4634717\text{×}10^{-07}λ^{-8}