spielwiese
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Last change
on this file since 891438c 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 d(ideal I) |
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| 5 | { |
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| 6 | int n=nvars(basering); |
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| 7 | int j,b,a; |
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| 8 | I=simplify(I,2); //cancels zeros in the generators of I |
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| 9 | if(size(I)==0) {return(n);} //size counts the generators |
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| 10 | //not equal to 0 |
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| 11 | for(j=1;j<=n;j++) |
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| 12 | { |
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| 13 | if(I[1]/var(j)!=0) |
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| 14 | { |
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| 15 | a=d(subst(I,var(j),0))-1; |
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| 16 | //we need -1 here because we stay in the basering |
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| 17 | if(a>b) {b=a;} |
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| 18 | } |
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| 19 | } |
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| 20 | return(b); |
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| 21 | } |
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| 22 | |
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| 23 | ring R=0,(x,y,z),dp; |
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| 24 | ideal I=yz,xz; |
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| 25 | |
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| 26 | d(I); |
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| 27 | |
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| 28 | dim(std(I)); |
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| 29 | |
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| 30 | tst_status(1);$ |
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