Status: New Owner: ---- Labels: Type-Defect Priority-Medium
New issue 2686 by [email protected]: unrank_lex gives wrong results http://code.google.com/p/sympy/issues/detail?id=2686 unrank_lex gives the correct permutations when their array form starts with 0, but the remaining permutations are wrong
from sympy.combinatorics.permutations import Permutation for i in range(6):
... print Permutation.unrank_lex(3, i) ... Permutation([0, 1, 2]) Permutation([0, 2, 1]) Permutation([0, 1, 2]) Permutation([0, 2, 1]) Permutation([0, 1, 2]) Permutation([0, 2, 1]) I fixed the problem in https://github.com/pernici/sympy/tree/perm1 Using this version
from sympy.combinatorics.permutations import Permutation for i in range(6):
... print Permutation.unrank_lex(3, i) ... Permutation([0, 1, 2]) Permutation([0, 2, 1]) Permutation([1, 0, 2]) Permutation([1, 2, 0]) Permutation([2, 0, 1]) Permutation([2, 1, 0]) -- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/sympy-issues?hl=en.
