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Normaliz :: getNumInvs

getNumInvs -- returns the numerical invariants computed

Synopsis

Description

This function returns a hashtable containing the invariants printed to the file with suffix inv, if the files are kept, i.e., if a filename is specified (see Keeping results of the computation by Normaliz). The key of an entry is a String describing the invariant, the value is the invariant, namely an ZZ for rank, index, multiplicity, a Sequence for the weights, the h-vector and the Hilbert polynomial and a Boolean for homogeneous and primary.

i1 : R=ZZ/37[x,y,t];
i2 : I=ideal(x^3,x^2*y,y^3);

o2 : Ideal of R
i3 : nmzFilename="example";
i4 : setNmzOption("hilb",true);
i5 : intclMonIdeal I;
i6 : invs=getNumInvs()

o6 = HashTable{h-vector => (1, 3, 0, 0)            }
               height 1 elements => 7
               hilbert basis elements => 7
               hilbert polynomial => (6, 17, 15, 4)
               homogeneous => true
               homogeneous weights => (1, 1, 1, -2)
               index => 1
               multiplicity => 4
               number extreme rays => 5
               number support hyperplanes => 5
               primary => false
               rank => 4

o6 : HashTable
i7 : hvector=invs#"h-vector"

o7 = (1, 3, 0, 0)

o7 : Sequence
i8 : rmNmzFiles();