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D.13.2.2 origin

Procedure from library gfan.lib (see gfan_lib).

Usage:
origin(n); n int

Return:
cone, the origin in an ambient space of dimension n

Example:
 
LIB "gfan.lib";
cone c = origin(2);
equations(c);
==> 1,0,
==> 0,1

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