This module allows to create and manage orthogonal polynomials.
Features
--------
* ortpol_quadrature : Returns nodes and weights of a quadrature from alphas and
betas
For each polynomial "x", the following functions are
available :
* x_eval : Evaluate polynomial
* x_norm : Compute L2 norm
* x_pdf : Evaluate probability distribution function
* x_poly : Create polynomial
* x_quadrature : Returns nodes and weights of Gauss quadrature
* x_variance : Variance of polynomial
* x_weight : Evaluate weight function
with :
* x="chebyshev" : Chebyshev Polynomials
* x="hermite" : Hermite Polynomials
* x="laguerre" : Laguerre Polynomials
* x="legendre" : Legendre Polynomials
