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D.13.2.37 relativeInteriorPoint

Procedure from library gfan.lib (see gfan_lib).

Usage:
relativeInteriorPoint(c); c cone

Return:
bigintmat, a point in the relative interior of c

Note:
not unique, unless c is in its canonical form

Example:
 
LIB "gfan.lib";
intmat M1[2][2]=
1,0,
0,1;
cone c1=coneViaPoints(M1);
relativeInteriorPoint(c1);
==> 1,1
intmat M2[2][2]=
1,0,
1,1;
cone c2=coneViaPoints(M2);
relativeInteriorPoint(c2);
==> 2,1

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