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D.13.1.44 emptyFan

Procedure from library gfan.lib (see gfan_lib).

Usage:
emptyFan(n); n int

Return:
fan, an empty fan in ambient dimension n

Example:
 
LIB "gfan.lib";
fan f=emptyFan(2);
f;
==> _application PolyhedralFan
==> _version 2.2
==> _type PolyhedralFan
==> 
==> AMBIENT_DIM
==> 2
==> 
==> DIM
==> -1
==> 
==> LINEALITY_DIM
==> 2
==> 
==> RAYS
==> 
==> N_RAYS
==> 0
==> 
==> LINEALITY_SPACE
==> 1 0	# 0
==> 0 1	# 1
==> 
==> ORTH_LINEALITY_SPACE
==> 
==> F_VECTOR
==> 
==> 
==> SIMPLICIAL
==> 1
==> 
==> PURE
==> 1
==> 
==> CONES
==> 
==> MAXIMAL_CONES
==>