Enhance eval function of poly class
Enhance eval function of poly class

Evaluate f(x) = a_n * x^n + .. + a_1* x + a_0 as below
f(x) = (...(a_n * x + a_{n-1}) * x + a_{n-2}) * x ....)

vrancurel/ntl,vrancurel/ntl,vrancurel/ntl