|  |  D.13.1.16 dimension Procedure from librarygfan.lib(see  gfan_lib).
 
Example:Usage:
dimension(c); c cone
dimension(f); f fan
 dimension(p); p polytope
 
Return:
int, the dimension of the input
 |  | LIB "gfan.lib";
intmat M1[1][2]=
1,0;
cone c1=coneViaPoints(M1);
dimension(c1);
==> 1
intmat M2[2][2]=
1,0,
0,1;
cone c2=coneViaPoints(M2);
dimension(c2);
==> 2
fan f = emptyFan(2);
dimension(f);
==> -1
insertCone(f,c1);
dimension(f);
==> 1
insertCone(f,c2);
dimension(f);
==> 2
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