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Macaulay2 web site
SVDComplexes
::
SVDComplexes
SVDComplexes
Description
Some functionality here should be moved elsewhere.
Here is an example of the usage.
Caveat
Authors
Frank Schreyer
<
schreyer@math.uni-sb.de
>
Mike Stillman
<
mike@math.cornell.edu
>
Version
This documentation describes version
0.2
of SVDComplexes.
Source code
The source code from which this documentation is derived is in the file
SVDComplexes.m2
.
Exports
Functions and commands
arePseudoInverses
-- check the Penrose relations for the pseudo inverse
checkSVDComplex
(missing documentation)
commonEntries
-- lists of positions, where they coincide up to threshold
euclideanDistance
-- compute the euclidean distance of two chain complexes
laplacians
-- compute the laplacians of a chain complex
newChainComplexMap
(missing documentation)
numericRank
-- approximate rank of a matrix, using SVD
projectToComplex
-- compute a nearby complex with the projection method
pseudoInverse
-- compute the pseudoInverse of a chainComplex
pseudoInverse1
(missing documentation)
SVDComplex
-- Compute the SVD decomposition of a chainComplex over RR
SVDHomology
-- Estimate the homology of a chainComplex over RR with the SVD decomposition
Symbols
Laplacian
-- Option for SVDHomology and SVDComplex
Projection
-- Option for SVDHomology and SVDComplex