CVS log for OpenXM/src/asir-contrib/packages/src/tk_hgpoly.rr

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Revision 1.10 / (download) - annotate - [select for diffs], Tue Sep 25 01:35:23 2018 UTC (5 years, 8 months ago) by takayama
Branch: MAIN
CVS Tags: HEAD
Changes since 1.9: +14 -4 lines
Diff to previous 1.9 (colored)

bug fix of tk_hgpoly.cprune.
"gr" is replaced by "nd_gr".

Revision 1.9 / (download) - annotate - [select for diffs], Wed Jul 25 01:03:13 2018 UTC (5 years, 10 months ago) by takayama
Branch: MAIN
Changes since 1.8: +24 -4 lines
Diff to previous 1.8 (colored)

tk_hgpoly.gmvector(A,B,P,Base) returns the Gauss-Manin vector for A-hypergeometric polynomial for A and B at X=P.
Ex. gmvector([[1,1,1],[0,1,2]],[5,6],[1,1,1/3],[1,dx_3,dx_1,dx_2]);

Revision 1.8 / (download) - annotate - [select for diffs], Thu Mar 5 06:03:34 2015 UTC (9 years, 2 months ago) by ohara
Branch: MAIN
Changes since 1.7: +10 -3 lines
Diff to previous 1.7 (colored)

tk_hgpoly.feasible(A,B) returns 0 iff (A,B) is not feasible.

Revision 1.7 / (download) - annotate - [select for diffs], Thu Mar 5 05:57:06 2015 UTC (9 years, 2 months ago) by ohara
Branch: MAIN
Changes since 1.6: +12 -7 lines
Diff to previous 1.6 (colored)

Add module function verbose(Flag) for message control.

Revision 1.6 / (download) - annotate - [select for diffs], Mon Feb 23 21:44:04 2015 UTC (9 years, 3 months ago) by takayama
Branch: MAIN
Changes since 1.5: +5 -5 lines
Diff to previous 1.5 (colored)

The case of non-square initial ideal is now processed correctly.
Ex. A=[[1,1,1],[0,1,2]], B=[3,3],  tk_hgpoly.hgpoly_start(A,B | verbose=1);

Revision 1.5 / (download) - annotate - [select for diffs], Mon Feb 23 07:51:02 2015 UTC (9 years, 3 months ago) by takayama
Branch: MAIN
Changes since 1.4: +144 -3 lines
Diff to previous 1.4 (colored)

A=[[0,0,0,1,1,1],[1,0,0,1,0,0],[0,1,0,0,1,0],[0,0,1,0,0,1]];
tk_hgpoly.hgpolyk(A,[9,3,3,4] | std=[1,dx5,dx6],x=[1,1/2,1/3,1,1,1]);
which returns [Z, dx5 Z, dx6 Z] at x.
It is supposed to be used for an initial value of the hgm.

Revision 1.4 / (download) - annotate - [select for diffs], Mon Feb 23 00:24:43 2015 UTC (9 years, 3 months ago) by takayama
Branch: MAIN
Changes since 1.3: +333 -1 lines
Diff to previous 1.3 (colored)

hgpolyk(A,B) is moved to tk_hgpoly.rr
The function tk_hgpoly.hgpolyk(A,B) constructs hypergeometric polynomial by a basis of Ker A,
which will be faster than tk_hgpoly.hgpoly, which constructs hg poly by taking a residue.
See test codes as for examples.

Revision 1.3 / (download) - annotate - [select for diffs], Sat Dec 20 12:16:10 2014 UTC (9 years, 5 months ago) by takayama
Branch: MAIN
Changes since 1.2: +46 -1 lines
Diff to previous 1.2 (colored)

tk_hgpoly.expectation(A,B,Point,RandomVariabes)
evaluates the expectations of the given random variables for the (A,B) distribution.
See test_exp1() as an example.
Note that it uses a slow algorithm.

Revision 1.2 / (download) - annotate - [select for diffs], Sat Dec 13 05:20:02 2014 UTC (9 years, 5 months ago) by takayama
Branch: MAIN
Changes since 1.1: +1 -2 lines
Diff to previous 1.1 (colored)

A cyclic import of ot_hgm_ahg.rr is removed.

Revision 1.1 / (download) - annotate - [select for diffs], Fri Dec 12 06:32:42 2014 UTC (9 years, 5 months ago) by takayama
Branch: MAIN

tk_hgpoly.hgpoly(A,B) returns the hypergeometric polynomial for A and B.
tk_hgpoly.feasible(A,B) returns a feasible point U for AU=B.
tk_hgpoly.optip(A,B,W) returns an optimal point U which minimizes UW under the constraint
AU=B.
See *test* functions for examples.

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