Top
Back: Res
Forward: printBetti
FastBack:
FastForward:
Up: modules_lib
Top: Singular Manual
Contents: Table of Contents
Index: Index
About: About this document

D.4.17.16 Betti

Procedure from library modules.lib (see modules_lib).

Usage:
Betti(reso); reso Resolution

Return:
intmat, Bettimatrix of the resolution

Note:
for a clear overview use printBetti

Example:
 
LIB "modules.lib";
ring r;
matrix m[1][3]=x,y,z;
Matrix M=m;
Module N=coker(M);
Resolution R=mRes(N);
R;
==>  1      3      3      1      
==> r <--  r <--  r <--  r
==> 
==> 0      1      2      3      
==> 
==> 
Betti(R);
==> 1,3,3,1 


Top Back: Res Forward: printBetti FastBack: FastForward: Up: modules_lib Top: Singular Manual Contents: Table of Contents Index: Index About: About this document
            User manual for Singular version 4.3.1, 2022, generated by texi2html.