spielwiese
|
Last change
on this file since e706ff was
b35b93,
checked in by Olaf Bachmann <obachman@…>, 26 years ago
|
|
This commit was generated by cvs2svn to compensate for changes in r1396,
which included commits to RCS files with non-trunk default branches.
git-svn-id: file:///usr/local/Singular/svn/trunk@1397 2c84dea3-7e68-4137-9b89-c4e89433aadc
|
-
Property mode set to
100644
|
|
File size:
1.2 KB
|
| Line | |
|---|
| 1 | //===========================================================================// |
|---|
| 2 | // LIBRARY: lib2 procedures for elimination and saturation // |
|---|
| 3 | // type lib2(); to list the procedures // |
|---|
| 4 | // 7/94 GMG+BM // |
|---|
| 5 | // version for the regression test |
|---|
| 6 | //===========================================================================// |
|---|
| 7 | /////////////////////////////////////////////////////////////////////////////// |
|---|
| 8 | |
|---|
| 9 | proc sat (ideal i,ideal j) |
|---|
| 10 | USAGE: sat(<i>,<j>); i,j ideals |
|---|
| 11 | RETURNS: ideal, union_(k=1...) of i:j^k |
|---|
| 12 | { |
|---|
| 13 | ideal @i; |
|---|
| 14 | int @ii; |
|---|
| 15 | while ( @ii<=size(@i)) |
|---|
| 16 | { |
|---|
| 17 | @i=quotient(i,j); |
|---|
| 18 | for ( @ii=1; @ii <= size(@i); @ii=@ii+1) |
|---|
| 19 | { |
|---|
| 20 | if (NF(@i[@ii],i)!=0) |
|---|
| 21 | break; |
|---|
| 22 | } |
|---|
| 23 | i=@i; |
|---|
| 24 | } |
|---|
| 25 | return (@i); |
|---|
| 26 | } |
|---|
| 27 | example |
|---|
| 28 | { "EXAMPLE:"; |
|---|
| 29 | " ring r=2,(x,y,z),dp;"; ring @r=2,(x,y,z),dp; |
|---|
| 30 | " poly F=x5+y5+(x-y)^2*xyz;"; poly @F=x5+y5+(x-y)^2*xyz; |
|---|
| 31 | " ideal j=jacob(F);"; ideal @j= jacob(@F); |
|---|
| 32 | " sat(j,maxideal(1));"; sat(@j,maxideal(1)); |
|---|
| 33 | kill @r; |
|---|
| 34 | } |
|---|
| 35 | /////////////////////////////////////////////////////////////////////////////// |
|---|
| 36 | |
|---|
Note: See
TracBrowser
for help on using the repository browser.
