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Topcom -- interface to selected functions from topcom package


Topcom is mathematical software written by Jorg Rambau for computing and manipulating triangulations of polytopes and chirotopes.

This Macaulay2 package provides an interface for some of the functionality of this software.

The package is meant as an internal package, to be called by packages such as Polyhedra. It is highly recommended to use those packages, rather than calling this package directly.

Example use of Topcom

Generating triangulations

Useful functions involving specific triangulations

Useful functions involving bistellar flips

Chirotope functions

The chirotope of a point set (or vector set), consisting of the columns of the $d \times n$ matrix $A$, is the function which assigns to each $d+1 \times d+1$ minor of $\overline{A}$ the sign of its determinant. Topcom encodes this into a string. See chirotopeString for details about the output of this function.

See also



This documentation describes version 0.95 of Topcom.

Source code

The source code from which this documentation is derived is in the file Topcom.m2.


For the programmer

The object Topcom is a package.