Python | SymPy Permutation.atoms() method
Last Updated :
26 Aug, 2019
Permutation.atoms() : atoms() is a sympy Python library function that returns all the elements that are present in the permutation.
Syntax : sympy.combinatorics.permutations.Permutation.atoms()
Return : elements of the argumented permutation.
Code #1 : atoms() Example
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation
a = Permutation([[ 2 , 0 ], [ 3 , 1 ]])
b = Permutation([ 1 , 3 , 5 , 4 , 2 , 0 ])
print ( "Permutation a - atoms form : " , a.atoms())
print ( "Permutation b - atoms form : " , b.atoms())
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Output :
Permutation a – atoms form : {0, 1, 2, 3}
Permutation b – atoms form : {0, 1, 2, 3, 4, 5}
Code #2 : atoms() Example – 2D Permutation
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation
a = Permutation([[ 2 , 4 , 0 ],
[ 3 , 1 , 2 ],
[ 1 , 5 , 6 ]])
print ( "Permutation a - atoms form : " , a.atoms())
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Output :
Permutation a – ascents form : [1, 2, 4]
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