=================================================================== RCS file: /home/cvs/OpenXM_contrib2/asir2000/lib/sp,v retrieving revision 1.10 retrieving revision 1.11 diff -u -p -r1.10 -r1.11 --- OpenXM_contrib2/asir2000/lib/sp 2002/06/21 00:34:21 1.10 +++ OpenXM_contrib2/asir2000/lib/sp 2003/02/07 09:25:58 1.11 @@ -45,7 +45,7 @@ * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. * - * $OpenXM: OpenXM_contrib2/asir2000/lib/sp,v 1.9 2001/10/12 06:07:05 noro Exp $ + * $OpenXM: OpenXM_contrib2/asir2000/lib/sp,v 1.10 2002/06/21 00:34:21 noro Exp $ */ /* sp : functions related to algebraic number fields @@ -62,6 +62,20 @@ extern ASCENT,GCDTIME,UFTIME,RESTIME,SQTIME,PRINT$ extern Ord$ extern USE_PARI_FACTOR$ + +/* gen_sp can handle non-monic poly */ + +def gen_sp(P) +{ + P = ptozp(P); + V = var(P); + D = deg(P,V); + LC = coef(P,D,V); + F = LC^(D-1)*subst(P,V,V/LC); + /* F must be monic */ + L = sp(F); + return cons(map(subst,car(L),V,LC*V),cdr(L)); +} def sp(P) {