spielwiese
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Last change
on this file since 8a8861 was
891438c,
checked in by Gerhard Pfister <pfister@…>, 23 years ago
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*GP: initial release
git-svn-id: file:///usr/local/Singular/svn/trunk@5579 2c84dea3-7e68-4137-9b89-c4e89433aadc
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-
Property mode set to
100644
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File size:
536 bytes
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| 1 | LIB "tst.lib"; |
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| 2 | tst_init(); |
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| 3 | |
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| 4 | proc fitting(matrix M, int n) |
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| 5 | { |
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| 6 | n=nrows(M)-n; |
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| 7 | if(n<=0){return(ideal(1));} |
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| 8 | if((n>nrows(M))||(n>ncols(M))){return(ideal(0));} |
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| 9 | return(std(minor(M,n))); |
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| 10 | } |
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| 11 | |
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| 12 | proc flatteningStrat(matrix M) |
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| 13 | { |
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| 14 | list l; |
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| 15 | int v,w; |
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| 16 | ideal F; |
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| 17 | while(1) |
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| 18 | { |
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| 19 | F=interred(fitting(M,w)); |
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| 20 | if(F[1]==1){return(l);} |
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| 21 | if(size(F)!=0){v++;l[v]=F;} |
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| 22 | w++; |
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| 23 | } |
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| 24 | return(l); |
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| 25 | } |
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| 26 | |
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| 27 | ring R=0,x(0..4),dp; |
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| 28 | matrix M[2][4]=x(0),x(1),x(2),x(3), |
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| 29 | x(1),x(2),x(3),x(4); |
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| 30 | |
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| 31 | flatteningStrat(M); |
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| 32 | |
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| 33 | tst_status(1);$ |
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