| version 1.3, 2000/08/22 05:04:21 |
version 1.7, 2003/10/20 00:58:47 |
|
|
| * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, |
* DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, |
| * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. |
* PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. |
| * |
* |
| * $OpenXM: OpenXM_contrib2/asir2000/lib/fff,v 1.2 2000/08/21 08:31:41 noro Exp $ |
* $OpenXM: OpenXM_contrib2/asir2000/lib/fff,v 1.6 2001/09/03 07:01:09 noro Exp $ |
| */ |
*/ |
| /* |
/* |
| fff : Univariate factorizer over a finite field. |
fff : Univariate factorizer over a finite field. |
|
|
| 99/06/11 noro |
99/06/11 noro |
| 99/07/27 noro |
99/07/27 noro |
| */ |
*/ |
| |
module fff $ |
| |
/* Empty for now. It will be used in a future. */ |
| |
endmodule $ |
| |
|
| #include "defs.h" |
#include "defs.h" |
| |
|
|
|
| F2 = ugcd(F,F1); |
F2 = ugcd(F,F1); |
| /* FLAT = H/gcd(H,H') : square free part of H */ |
/* FLAT = H/gcd(H,H') : square free part of H */ |
| FLAT = sdiv(F,F2); |
FLAT = sdiv(F,F2); |
| |
FLAT /= LCOEF(FLAT); |
| I = 0; |
I = 0; |
| /* square free factorization of H */ |
/* square free factorization of H */ |
| while ( deg(FLAT,V) ) { |
while ( deg(FLAT,V) ) { |
|
|
| FLAT1 = simp_ff(1); |
FLAT1 = simp_ff(1); |
| else |
else |
| FLAT1 = ugcd(F,FLAT); |
FLAT1 = ugcd(F,FLAT); |
| |
FLAT1 /= LCOEF(FLAT1); |
| G = sdiv(FLAT,FLAT1); |
G = sdiv(FLAT,FLAT1); |
| FLAT = FLAT1; |
FLAT = FLAT1; |
| L = cons([G,I],L); |
L = cons([G,I],L); |
| Line 467 def lnf_insert(P,L,V) |
|
| Line 472 def lnf_insert(P,L,V) |
|
| def c_z_ff(F,E) |
def c_z_ff(F,E) |
| { |
{ |
| Type = field_type_ff(); |
Type = field_type_ff(); |
| if ( Type == 1 || Type == 3 ) |
if ( Type == 1 || Type == 3 || Type == 4 || Type == 5 ) |
| return c_z_lm(F,E); |
return c_z_lm(F,E); |
| else |
else |
| return c_z_gf2n(F,E); |
return c_z_gf2n(F,E); |
| Line 498 def find_root_ff(P) |
|
| Line 503 def find_root_ff(P) |
|
| def c_z_one_ff(F,E) |
def c_z_one_ff(F,E) |
| { |
{ |
| Type = field_type_ff(); |
Type = field_type_ff(); |
| if ( Type == 1 || Type == 3 ) |
if ( Type == 1 || Type == 3 || Type == 4 || Type == 5 ) |
| return c_z_one_lm(F,E); |
return c_z_one_lm(F,E); |
| else |
else |
| return c_z_one_gf2n(F,E); |
return c_z_one_gf2n(F,E); |