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D.13.2.41 span

Procedure from library gfan.lib (see gfan_lib).

Usage:
span(c); c cone

Return:
bigintmat, unique irredundant equations of c

Note:
the name 'span' was chosen to be in line with polymake's nomenclature

Example:
 
LIB "gfan.lib";
intmat M[3][5]=
1,0,0,0,0,
0,1,0,0,0,
0,0,1,0,0;
cone c=coneViaPoints(M);
bigintmat Eq=span(c);
print(Eq);
==> 0,0,0,-1, 0,
==> 0,0,0, 0,-1