C

n=sqrt(1+0.26486+0.30523/(1-pow(0.100/x,2))+0.41620/(1-pow(0.131/x,2))+0.18870/(1-pow(0.162/x,2))+2.6200/(1-pow(70.42/x,2)))

Python

n=(1+0.26486+0.30523/(1-(0.100/x)**2)+0.41620/(1-(0.131/x)**2)+0.18870/(1-(0.162/x)**2)+2.6200/(1-(70.42/x)**2))**.5

Fortran

n=SQRT(1+0.26486+0.30523/(1-(0.100/x)**2)+0.41620/(1-(0.131/x)**2)+0.18870/(1-(0.162/x)**2)+2.6200/(1-(70.42/x)**2))

MATLAB

n=sqrt(1+0.26486+0.30523./(1-(0.100./x).^2)+0.41620./(1-(0.131./x).^2)+0.18870./(1-(0.162./x).^2)+2.6200./(1-(70.42./x).^2))

LaTeX

n^2-1=0.26486+\frac{0.30523λ^2}{λ^2-0.100^2}+\frac{0.41620λ^2}{λ^2-0.131^2}+\frac{0.18870λ^2}{λ^2-0.162^2}+\frac{2.6200λ^2}{λ^2-70.42^2}