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4.22.4.11 getFacetNormals

Syntax:
getFacetNormals( cone c )
getFacetNormals( polytope p )
Type:
intmat
Purpose:
inner normal vectors of the facets of the cone
Example:
 
intmat M1[2][2]=
1,0,
0,1;
cone c1=coneViaRays(M1);
intmat F1=getFacetNormals(c1);
print(F1);
==>      0     1
==>      1     0
intmat M2[2][2]=
1,1,
0,-1;
cone c2=coneViaRays(M2);
intmat F2=getFacetNormals(c2);
print(F2);
==>      1    -1
==>      1     0

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