Interpolación de Lagrange

Lagrange interpolation using eleven equidistant points of the [-1,1] range, obtained from the following function: $$f(x) = \frac{1}{1+25*x^2}$$ Considering for the interpolation 100 values of the [-1,1] range. Graph shows both the \(f(x)\) function and the values obtained with Lagrange interpolation.