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| * algebras/quatalg/quaternion_algebra.py : more examples |
* combinat/words/paths.py has a lot of sentences whose ':' is preceded by a space. |
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| * graphs : implement the [[http://en.wikipedia.org/wiki/Y-%CE%94_transform|delta-y transformation]]. | * graphs : implement the [[http://en.wikipedia.org/wiki/Y-%CE%94_transform#Graph_theory|delta-y transformation]]. |
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| * crypto : add the [[http://en.wikipedia.org/wiki/Enigma_machine|enigma cryptosystem]]. | * crypto : implement the [[http://en.wikipedia.org/wiki/Enigma_machine|enigma cryptosystem]]. |
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| * algebras/quatalg/quaternion_algebra.py : more examples in the ramified_primes method |
This page aims to have a list some unreferenced bugs that people will have to report on the trac server during the "how to report a bug" session. We need to find about 20 bugs, to be found among the sage documentation. You should mention which version of sage (4.6 or 4.6.1) is used.
documentation bugs
- combinat/words/paths.py has a lot of sentences whose ':' is preceded by a space.
whish list
graphs : implement the delta-y transformation.
graphs : construction of the Petersen family.
crypto : implement the enigma cryptosystem.
other bugs
- fix indentation in the
- combinat/sf/schur.py
- combinat/sf/macdonald.py
- combinat/sf/powersum.py
- combinat/sf/elementary.py
- add definitions, references and examples
combinat/composition.py: in particular Composition_class.conjugate see http://en.wikipedia.org/wiki/Composition_(number_theory)
- combinat/composition_signed.py
combinat/dyck_word.py: see http://en.wikipedia.org/wiki/Catalan_number
combinat/yamanouchi.py: unintelligible definition (see Wikipedia http://en.wikipedia.org/wiki/Yamanouchi_word or Fulton, William (1997), Young tableaux, London Mathematical Society Student Texts, 35, Cambridge University Press, MR1464693, or M. Lothaire, Algebraic combinatorics on words, Encyclopedia of Mathematics
combinat/lyndon_word.py: no definition of Lyndon word, no reference... see Lothaire, Algebraic combinatorics on words, p. 5, and http://en.wikipedia.org/wiki/Lyndon_word
- algebras/quatalg/quaternion_algebra.py : more examples in the ramified_primes method