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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

 `# Python code explaining``# SymPy.Permutation.atoms()`` ` `# importing SymPy libraries``from` `sympy.combinatorics.partitions ``import` `Partition``from` `sympy.combinatorics.permutations ``import` `Permutation`` ` `# Using from sympy.combinatorics.permutations.Permutation.atoms() method `` ` `# creating 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())`

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

 `# Python code explaining``# SymPy.Permutation.atoms()`` ` `# importing SymPy libraries``from` `sympy.combinatorics.partitions ``import` `Partition``from` `sympy.combinatorics.permutations ``import` `Permutation`` ` `# Using from sympy.combinatorics.permutations.Permutation.atoms() method `` ` `# creating Permutation``a ``=` `Permutation([[``2``, ``4``, ``0``], ``                 ``[``3``, ``1``, ``2``],``                 ``[``1``, ``5``, ``6``]])`` ` ` ` `print` `(``"Permutation a - atoms form : "``, a.atoms())`

Output :

Permutation a – ascents form : [1, 2, 4]

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