C

n=sqrt(1+0.27587+0.68689/(1-pow(0.130/x,2))+0.26090/(1-pow(0.147/x,2))+0.06256/(1-pow(0.163/x,2))+0.06527/(1-pow(0.177/x,2))+0.14991/(1-pow(0.185/x,2))+0.51818/(1-pow(0.206/x,2))+0.01918/(1-pow(0.218/x,2))+3.38229/(1-pow(161.29/x,2)))

Python

n=(1+0.27587+0.68689/(1-(0.130/x)**2)+0.26090/(1-(0.147/x)**2)+0.06256/(1-(0.163/x)**2)+0.06527/(1-(0.177/x)**2)+0.14991/(1-(0.185/x)**2)+0.51818/(1-(0.206/x)**2)+0.01918/(1-(0.218/x)**2)+3.38229/(1-(161.29/x)**2))**.5

Fortran

n=SQRT(1+0.27587+0.68689/(1-(0.130/x)**2)+0.26090/(1-(0.147/x)**2)+0.06256/(1-(0.163/x)**2)+0.06527/(1-(0.177/x)**2)+0.14991/(1-(0.185/x)**2)+0.51818/(1-(0.206/x)**2)+0.01918/(1-(0.218/x)**2)+3.38229/(1-(161.29/x)**2))

MATLAB

n=sqrt(1+0.27587+0.68689./(1-(0.130./x).^2)+0.26090./(1-(0.147./x).^2)+0.06256./(1-(0.163./x).^2)+0.06527./(1-(0.177./x).^2)+0.14991./(1-(0.185./x).^2)+0.51818./(1-(0.206./x).^2)+0.01918./(1-(0.218./x).^2)+3.38229./(1-(161.29./x).^2))

LaTeX

n^2-1=0.27587+\frac{0.68689λ^2}{λ^2-0.130^2}+\frac{0.26090λ^2}{λ^2-0.147^2}+\frac{0.06256λ^2}{λ^2-0.163^2}+\frac{0.06527λ^2}{λ^2-0.177^2}+\frac{0.14991λ^2}{λ^2-0.185^2}+\frac{0.51818λ^2}{λ^2-0.206^2}+\frac{0.01918λ^2}{λ^2-0.218^2}+\frac{3.38229λ^2}{λ^2-161.29^2}