Factor, Extension

*To*: mathgroup at smc.vnet.net*Subject*: [mg113768] Factor, Extension*From*: janos <janostothmeister at gmail.com>*Date*: Thu, 11 Nov 2010 06:10:36 -0500 (EST)

Dear All, What is the meaning of the help of Factor: Factor[poly,Extension->Automatic] will extend the domain of coefficients to include any algebraic numbers that appear in poly. =BB if Factor[x^2 - 2, Extension -> Automatic] does not seem to work in the same way as Factor[x^2 - 2, Extension -> Sqrt[2]] Thanks, J=E1nos