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######################### BEGIN COPYRIGHT MESSAGE #########################
# GBNP - computing Gröbner bases of noncommutative polynomials
# Copyright
2001-
2010 by Arjeh M. Cohen, Dié A.H. Gijsbers, Jan Willem
# Knopper, Chris Krook. Address: Discrete Algebra and Geometry (DAM) group
# at the Department of Mathematics and Computer Science of Eindhoven
# University of Technology.
#
# For acknowledgements see the manual. The manual can be found in several
# formats in the doc subdirectory of the GBNP distribution. The
# acknowledgements formatted as text can be found in the file chap0.txt.
#
# GBNP is free software; you can redistribute it and/or modify it under
# the terms of the Lesser GNU General Public License as published by the
# Free Software Foundation (FSF); either version
2.
1 of the License, or
# (at your option) any later version. For details, see the file 'LGPL' in
# the doc subdirectory of the GBNP distribution or see the FSF's own site:
#
https://www.gnu.org/licenses/lgpl.html
########################## END COPYRIGHT MESSAGE ##########################
LoadPackage("gbnp", false);
# EvalTrace
NPTzero:=rec(pol:=[[],[]],trace:=[]);;
EvalTrace(NPTzero,[[]])=[[],[]];
# PrintTraceList
PrintTraceList([]);
# PrintTracePol
NPTzero:=rec(pol:=[[],[]],trace:=[]);;
PrintTracePol(NPTzero); # note does not print anything (!)
# PrintNPListTrace
PrintNPListTrace([]);
# SGrobnerTrace
SGrobnerTrace([])=[];
SGrobnerTrace([[[],[]]])=[];
GBT:=SGrobnerTrace([[[[]],[
1]]]);;
Length(GBT)=
1;
GBT[
1].pol=[[[]],[
1]];
GBT[
1].trace=[[[],
1,[],
1]];
# StrongNormalFormTraceDiff
GBT:=SGrobnerTrace([[[[
1]],[
1]]]);;
tr:=StrongNormalFormTraceDiff([[[
1]],[
1]],GBT);;
tr.pol=[[[
1]],[
1]];
tr.trace=[[[],
1,[],
1]];
# cannot be reduced
tr:=StrongNormalFormTraceDiff([[[]],[
1]],GBT);;
tr.pol=[[],[]];
tr.trace=[];
# cannot be reduced
tr:=StrongNormalFormTraceDiff([[],[]],GBT);;
tr.pol=[[],[]];
tr.trace=[];
GBT:=SGrobnerTrace([[[[]],[
1]]]);;
tr:=StrongNormalFormTraceDiff([[[
1]],[
1]],GBT);;
tr.pol=[[[
1]],[
1]];
tr.trace=[[[],
1,[
1],
1]];
tr:=StrongNormalFormTraceDiff([[[
2]],[
1]],GBT);;
tr.pol=[[[
2]],[
1]];
tr.trace=[[[],
1,[
2],
1]];
# cannot be reduced
tr:=StrongNormalFormTraceDiff([[],[]],GBT);;
tr.pol=[[],[]];
tr.trace=[];