LIB "gfan.lib";
intmat M[3][3]=
1,0,0,
0,1,0,
0,0,1;
cone c=coneViaPoints(M);
intvec v=1,0,0;
cone cv=coneLink(c,v);
rays(cv);
==> 0,1,0,
==> 0,0,1
generatorsOfLinealitySpace(cv);
==> -1,0,0
intvec w=1,1,1;
cone cw=coneLink(c,w);
rays(cw);
==> 
generatorsOfLinealitySpace(cw);
==> -1, 0, 0,
==>  0,-1, 0,
==>  0, 0,-1