bounded_regions () (A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 6 vertices, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices) sage: b. regions () (A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 6 vertices, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices and 1 ray, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices and 1 ray, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 1 vertex and 2 rays, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices and 1 ray, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 1 vertex and 2 rays, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices and 1 ray, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 1 vertex and 2 rays, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices and 1 ray, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 1 vertex and 2 rays, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 3 vertices and 1 ray, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 1 vertex and 2 rays, A 2-dimensional polyhedron in QQ^2 defined as the convex hull of 1 vertex and 2 rays) sage: b. essentialization () b Arrangement of 6 hyperplanes of dimension 2 and rank 2 sage: b. Normal space (actually, it is a bit more complicated over finite The essentialization is formed by intersecting the hyperplanes by this coordinate ( 3 ) True Properties of Arrangements ¶Ī hyperplane arrangement is essential if the normals to its restriction ( h ) sage: b = hyperplane_arrangements. Catalan ( 3 ) True sage: a Arrangement sage: a = hyperplane_arrangements. semiorder ( 3 ) # alternate syntax True sage: b = hyperplane_arrangements. semiorder ( 3 )) sage: b = a | hyperplane_arrangements.
deletion () sage: a = c True sage: a = hyperplane_arrangements. add_hyperplane () sage: b Arrangement sage: c = b.
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