You need to install ox_asir server to use this function. (ox_asir function) f fctr g poly f; array g; [f v] fctr g ; string f, string or array of string v This function factors the polynomial f over Q. Example 1: [(x^10-y^10) (x,y)] fctr :: Example 2: (x^10-1). fctr :: If you interrupted the computation by typing ctrl-C, type in oxasir.ccc oxreset ; to interrupt the ox_asir server. This function requires plugins cmo, socket and ox_asir server. cf.oxasir