C

n=sqrt(1+1.264742/(1-0.007911881/pow(x,2))+0.189784/(1-0.03806705/pow(x,2))+1.105094/(1-133.8316/pow(x,2)))

Python

n=(1+1.264742/(1-0.007911881/x**2)+0.189784/(1-0.03806705/x**2)+1.105094/(1-133.8316/x**2))**.5

Fortran

n=SQRT(1+1.264742/(1-0.007911881/x**2)+0.189784/(1-0.03806705/x**2)+1.105094/(1-133.8316/x**2))

MATLAB

n=sqrt(1+1.264742./(1-0.007911881./x.^2)+0.189784./(1-0.03806705./x.^2)+1.105094./(1-133.8316./x.^2))

LaTeX

n^2-1=\frac{1.264742λ^2}{λ^2-0.007911881}+\frac{0.189784λ^2}{λ^2-0.03806705}+\frac{1.105094λ^2}{λ^2-133.8316}