table
P1 := convhull([-1, 0], [1, 0], [0, 1], [1/2, 0]);
vertices(P1);
hspaces(P1);
P2 := convhull(P1, posorthant(2), ray([2, -1]));
vertices(P2), rays(P2);
hspaces(P2);
end of table
after br

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