spielwiese
|
Last change
on this file since 9faaf0 was
9faaf0,
checked in by Hans Schönemann <hannes@…>, 17 years ago
|
|
*hannes: syntax fix
git-svn-id: file:///usr/local/Singular/svn/trunk@10214 2c84dea3-7e68-4137-9b89-c4e89433aadc
|
-
Property mode set to
100644
|
|
File size:
598 bytes
|
| Line | |
|---|
| 1 | LIB "tst.lib"; |
|---|
| 2 | tst_init(); |
|---|
| 3 | |
|---|
| 4 | // ======================================= example B.6.12 ================== |
|---|
| 5 | |
|---|
| 6 | ring R=0,(x,y),dp; |
|---|
| 7 | poly f=3x2y+4xy2+y3+3x2+6xy+y2+3x; |
|---|
| 8 | poly g=2x2y+xy2-y3-2x2-y2-2x; |
|---|
| 9 | |
|---|
| 10 | ring S=(0,y),x,dp; |
|---|
| 11 | poly f=imap(R,f); poly g=imap(R,g); |
|---|
| 12 | f; |
|---|
| 13 | g; |
|---|
| 14 | |
|---|
| 15 | ring T1=5,x,dp; |
|---|
| 16 | map phi=R,x,0; |
|---|
| 17 | poly f=phi(f); poly g=phi(g); |
|---|
| 18 | f; |
|---|
| 19 | g; |
|---|
| 20 | |
|---|
| 21 | ring T2=7,x,dp; |
|---|
| 22 | map psi=R,x,0; |
|---|
| 23 | poly f=psi(f); poly g=psi(g); |
|---|
| 24 | f; |
|---|
| 25 | g; |
|---|
| 26 | |
|---|
| 27 | setring T1; |
|---|
| 28 | phi=R,x,2; |
|---|
| 29 | f=phi(f); g=phi(g); //we substitute y by 2 |
|---|
| 30 | gcd(f,g); |
|---|
| 31 | |
|---|
| 32 | setring T2; |
|---|
| 33 | psi=R,x,2; |
|---|
| 34 | f=psi(f); g=psi(g); |
|---|
| 35 | gcd(f,g); |
|---|
| 36 | |
|---|
| 37 | setring R; |
|---|
| 38 | gcd(f,g); //the SINGULAR built-in function |
|---|
| 39 | |
|---|
| 40 | tst_status(1);$ |
|---|
| 41 | |
|---|
Note: See
TracBrowser
for help on using the repository browser.
