Le 22/06/2014 13:34, Samuel Gougeon a écrit : > Apart the x=>s bug, the uncomplete decomposition is due to the > uncomplete factorization/simplification. Illustration for the case you have submitted: -->f = polfact(x^3-3*x+2) f = 1 2 + x - 1 + x - 1.0000000 + x -->f(3)==f(4) ans = F