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Triangulations : Table of Contents
Triangulations
-- triangulations of polyhedra and point sets
allTriangulations(Matrix)
-- use topcom to generate all triangulations of a point or vector configuration
bistellarFlip
-- perform a bistellar flip on a triangulation
Chirotope
-- the chirotope (oriented matroid) of a point or vector configuration
chirotope
-- compute the chirotope of a point or vector configuration
ConeIndex
-- optional argument: index of the cone center for star triangulations
degreeMatrix
-- charge matrix Q whose rows generate ker A
delaunaySubdivision
-- the Delaunay subdivision of a point set
delaunayWeights
-- squared-norm weights inducing the Delaunay subdivision of a point set
Edges
(missing documentation)
fineStarTriangulation
-- refine a triangulation to a fine star triangulation by coning over a center
flipCandidates
-- candidate affine circuits for bistellar flips of a triangulation
flipGraph
-- bistellar-flip graph of a point or vector configuration
flips
-- legal bistellar flips of a triangulation, computed via topcom
generateTriangulations
-- generate all triangulations with certain properties
gkzVector
(missing documentation)
isFine
-- test whether a triangulation uses every point in the configuration
isRegularTriangulation
-- determine if a given triangulation is a regular triangulation
isStar
-- test whether a triangulation is a star with respect to its last point
isWellDefined(Triangulation)
-- test whether the simplices of a triangulation form a valid triangulation
makeFine
-- walk to a fine triangulation by support-increasing bistellar flips
matrix(Triangulation)
-- the matrix whose columns are the points of a triangulation
max(Triangulation)
-- the maximal simplices of a triangulation
naiveChirotope
-- compute the chirotope of a configuration via determinants in Macaulay2
neighbors
-- triangulations adjacent to a given one in the bistellar-flip graph
regularFineFanTriangulation
-- a regular fine star fan triangulation of a vector configuration
regularFineStarTriangulation
-- a regular fine star triangulation of a polytope's boundary
regularFineTriangulation
-- a regular fine triangulation of a point or vector configuration
regularTriangulationWeights
-- height vector inducing a regular triangulation, if one exists
secondaryCone
-- secondary cone of a triangulation, in charge-lattice coordinates
someTriangulation
-- a triangulation of a point or vector configuration, not necessarily fine or regular
Triangulation
-- a triangulation of a point or vector configuration
triangulation
-- make a Triangulation object
vectors
-- the column vectors of the configuration underlying a triangulation
volumeVector
-- the GKZ vector (per-vertex/per-ray volume sum) of a triangulation
wallCircuits
-- distinct codim-2 wall circuits of a triangulation, with sign convention