C

n=sqrt(1+0.14600+1.26628/(1-pow(0.120/x,2))+0.01137/(1-pow(0.146/x,2))+0.00975/(1-pow(0.160/x,2))+0.00672/(1-pow(0.173/x,2))+0.34557/(1-pow(0.187/x,2))+3.76339/(1-pow(136.05/x,2)))

Python

n=(1+0.14600+1.26628/(1-(0.120/x)**2)+0.01137/(1-(0.146/x)**2)+0.00975/(1-(0.160/x)**2)+0.00672/(1-(0.173/x)**2)+0.34557/(1-(0.187/x)**2)+3.76339/(1-(136.05/x)**2))**.5

Fortran

n=SQRT(1+0.14600+1.26628/(1-(0.120/x)**2)+0.01137/(1-(0.146/x)**2)+0.00975/(1-(0.160/x)**2)+0.00672/(1-(0.173/x)**2)+0.34557/(1-(0.187/x)**2)+3.76339/(1-(136.05/x)**2))

MATLAB

n=sqrt(1+0.14600+1.26628./(1-(0.120./x).^2)+0.01137./(1-(0.146./x).^2)+0.00975./(1-(0.160./x).^2)+0.00672./(1-(0.173./x).^2)+0.34557./(1-(0.187./x).^2)+3.76339./(1-(136.05./x).^2))

LaTeX

n^2-1=0.14600+\frac{1.26628λ^2}{λ^2-0.120^2}+\frac{0.01137λ^2}{λ^2-0.146^2}+\frac{0.00975λ^2}{λ^2-0.160^2}+\frac{0.00672λ^2}{λ^2-0.173^2}+\frac{0.34557λ^2}{λ^2-0.187^2}+\frac{3.76339λ^2}{λ^2-136.05^2}