#17248: Rewriting the method cardinality in the SetPartitions_setparts
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Reporter: g.chatel | Owner: gchatel
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.4
Component: | Keywords: cardinality, set partitions
combinatorics | Authors: Grégory Châtel
Merged in: | Report Upstream: N/A
Reviewers: | Branch:
Work issues: | Dependencies:
Commit: |
Stopgaps: |
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I have changed the cardinality method of the SetPartitions_setparts class.
It used to list the set partitions and now it computes the cardinality
using basic enumeration formulas.
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Ticket URL: <http://trac.sagemath.org/ticket/17248>
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