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D.13.2.43 containsInCollection

Procedure from library gfan.lib (see gfan_lib).

Usage:
containsInCollection(f,c); f fan, c cone

Return:
1, if f contains c; 0 otherwise

Example:
 
LIB "gfan.lib";
fan f=emptyFan(2);
intmat M[2][2]=
1,0,
0,1;
cone c=coneViaPoints(M);
containsInCollection(f,c);
==> 0
insertCone(f,c);
containsInCollection(f,c);
==> 1

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