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4.23.4.21 negatedCone

Syntax:
negatedCone( cone c )
Type:
cone
Purpose:
the negated (or negative) of the cone
Example:
 
intmat M[2][2]=
1,0,
0,1;
cone c=coneViaRays(M);
cone cn=negatedCone(c);
cn;
==> AMBIENT_DIM
==> 2
==> INEQUALITIES
==> -1,0,
==> 0,-1
==> EQUATIONS
==> 
print(rays(cn));
==> -1,  0
==>  0, -1

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            User manual for Singular version 3-1-4, Jan 2012, generated by texi2html.