Polyhedra: a package for computations with convex polyhedral objects. Convex polyhedral objects play an important role in numerous areas of algebraic geometry. The package Polyhedra enables one to work with such convex polyhedral objects in Macaulay 2. In particular, Polyhedra implements objects representing polyhedra, cones, and fans. Many standard operations, such as intersections, duality, convex hulls, and calculation of Hilbert bases are included. The package also provides functions to create convex polyhedral objects from some algebraic objects.

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