C

n=sqrt(2.76433988-0.0131613327*pow(x,2)+0.0182673276*pow(x,-2)+0.000301224328*pow(x,-4)+4.56200323e-06*pow(x,-6)-2.05087278e-09*pow(x,-8))

Python

n=(2.76433988-0.0131613327*x**2+0.0182673276*x**-2+0.000301224328*x**-4+4.56200323e-06*x**-6-2.05087278e-09*x**-8)**.5

Fortran

n=SQRT(2.76433988-0.0131613327*x**2+0.0182673276*x**-2+0.000301224328*x**-4+4.56200323e-06*x**-6-2.05087278e-09*x**-8)

MATLAB

n=sqrt(2.76433988-0.0131613327.*x.^2+0.0182673276.*x.^-2+0.000301224328.*x.^-4+4.56200323e-06.*x.^-6-2.05087278e-09.*x.^-8)

LaTeX

n^2=2.76433988-0.0131613327λ^{2}+0.0182673276λ^{-2}+0.000301224328λ^{-4}+4.56200323\text{×}10^{-06}λ^{-6}-2.05087278\text{×}10^{-09}λ^{-8}