GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
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## read.g ConvexForHomalg package Sebastian Gutsche
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## Copyright 2011-2012 Lehrstuhl B für Mathematik, RWTH Aachen
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## Gives the Methods for Polymake
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ReadPackage( "Convex", "gap/ConvexObject.gi" );
## Fan Methods
ReadPackage( "Convex", "gap/LIFan.gi" );
ReadPackage( "Convex", "gap/Fan.gi" );
## Cone Methods
ReadPackage( "Convex", "gap/LICon.gi" );
ReadPackage( "Convex", "gap/Cone.gi" );
## Polytope Methods
ReadPackage( "Convex", "gap/Polytope.gi" );
if IsPackageMarkedForLoading( "PolymakeInterface", ">=0" ) = true then
ReadPackage( "Convex", "gap/Polymake.gi" );
fi;
ReadPackage( "Convex", "gap/Polyhedron.gi" );