= Sage Days 30 Best First Contribution Prize =

Chris Berg and Francis Bischoff both won the Best First Contribution Prize ([[http://www.amazon.com/Extreme-Programming-Explained-Embrace-Change/dp/0321278658|Kent Beck's book]] on [[http://en.wikipedia.org/wiki/Extreme_Programming|Extreme programming]] + chocolates!) for their implementation of K-schur functions in non commutative variables, and jeu de taquin for D-complete posets.


Contestants:

* Carolina Benedetti: 
  [[http://www.math.yorku.ca/~carobene/quantum_grass.py|Implementation ]]

* Chris Berg,
  k-Schur functions in non-commutative variables http://trac.sagemath.org/sage_trac/ticket/11290

* Gaelan: [[attachment:Gaelans_Functions.py]]

* Eric: [[attachment:dcomp-poset-eric.sage]]

* Francis: [[attachment:jeu_taquin.py]]