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An Interface for using polymake in GAP

( Version 0.8.1 )

Marc Roeder
Email: marc_roeder(at)web.de

Address:
Marc Roeder, Department of Mathematics, NUI Galway, Irleland

Abstract

This package provides a very basic interface to the polymake program by Ewgenij Gawrilow, Michael Joswig et al. [GJ]. The polymake program itself is not included.

Copyright

© 2007--2013 Marc Roeder.

This package is distributed under the terms of the GNU General Public License version 2 or later (at your convenience). See the file "LICENSE.txt" or http://www.gnu.org/copyleft/gpl.html

Acknowledgements

This work has been supported by Marie Curie Grant No. MTKD-CT-2006-042685

Contents

1 Installation and Preface

1.1 A few words about the installation of polymake

1.2 Setting variables for external programs
  1.2-1 SetPolymakeDataDirectory
  1.2-2 SetPolymakeCommand
  1.2-3 Setting variables permanently

2 Polymake interaction

2.1 Creating Polymake Objects
  2.1-1 CreateEmptyFile
  2.1-2 CreatePolymakeObject
  2.1-3 CheckAppVerTypList
  2.1-4 CreatePolymakeObjectFromFile

2.2 Accessing Properties of Polymake Objects
  2.2-1 DirectoryOfPolymakeObject
  2.2-2 FilenameOfPolymakeObject
  2.2-3 FullFilenameOfPolymakeObject
  2.2-4 NamesKnownPropertiesOfPolymakeObject
  2.2-5 KnownPropertiesOfPolymakeObject
  2.2-6 PropertyOfPolymakeObject

2.3 Example: Creating and Accessing Polymake Objects

2.4 Writing to Polymake Objects
  2.4-1 AppendToPolymakeObject
  2.4-2 AppendPointlistToPolymakeObject
  2.4-3 AppendVertexlistToPolymakeObject
  2.4-4 AppendInequalitiesToPolymakeObject
  2.4-5 ConvertMatrixToPolymakeString
  2.4-6 ClearPolymakeObject
  2.4-7 WriteKnownPropertyToPolymakeObject
  2.4-8 UnbindKnownPropertyOfPolymakeObject

2.5 Calling Polymake and converting its output
2.5-1 Polymake

3 Global Variables

3.1 Getting information about polymake output
3.1-1 InfoPolymaking
3.1-2 POLYMAKE_LAST_FAIL_REASON

3.2 Variables for system interaction
3.2-1 POLYMAKE_COMMAND
3.2-2 POLYMAKE_DATA_DIR

4 Converting Polymake Output

4.1 The General Method
  4.1-1 Converter- Philosopy
  4.1-2 ConvertPolymakeOutputToGapNotation
  4.1-3 SplitPolymakeOutputStringIntoBlocks
  4.1-4 ObjectConverters

4.2 Conversion Functions
  4.2-1 ConvertPolymakeNumber
  4.2-2 ConvertPolymakeScalarToGAP
  4.2-3 ConvertPolymakeMatrixOrListOfSetsToGAP
  4.2-4 ConvertPolymakeMatrixToGAP
  4.2-5 ConvertPolymakeVectorToGAP
  4.2-6 ConvertPolymakeBoolToGAP
  4.2-7 ConvertPolymakeSetToGAP
  4.2-8 ConvertPolymakeListOfSetsToGAP
  4.2-9 ConvertPolymakeGraphToGAP

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