Top
Back: B.2.7 Product orderings
Forward: Appendix C Mathematical background
FastBack: Appendix B Polynomial data
FastForward: Appendix C Mathematical background
Up: B.2 Monomial orderings
Top: 1 Preface
Contents: Table of Contents
Index: F Index
About: About This Document

B.2.8 Extra weight vector

a(w1,,wn), w1,,wn

any integers (including 0), defines deg(xα) = w1α1 + ⋅⋅⋅ + wnαn and

deg(xα) < deg(xβ) ⇒ xα < xβ,
deg(xα) > deg(xβ) ⇒ xα > xβ.

An extra weight vector does not define a monomial ordering by itself: it can only be used in combination with other orderings to insert an extra line of weights into the ordering matrix.


Example:

ring r = 0, (x,y,z),  (a(1,2,3),wp(4,5,2));
ring s = 0, (x,y,z),  (a(1,2,3),dp);
ring q = 0, (a,b,c,d),(lp(1),a(1,2,3),ds);

Top Back: B.2.7 Product orderings Forward: Appendix C Mathematical background FastBack: Appendix B Polynomial data FastForward: Appendix C Mathematical background Up: B.2 Monomial orderings Top: 1 Preface Contents: Table of Contents Index: F Index About: About This Document
            User manual for Singular version 2-0-4, October 2002, generated by texinfo.