Create Laguerre polynomial
y=laguerre_poly(n)
a 1-by-1 matrix of doubles, integer value, n>=0.
a polynomial
Create a Laguerre polynomial of degree n at point x.
The Laguerre polynomials are orthogonals with respect to the scalar product :
where w(x) is the Laguerre weight.
For n large (i.e.n>15), the evaluation of the polynomial with the horner function can be very inaccurate. To evaluate the polynomial, the laguerre_eval is more accurate.