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# Python | sympy rank() method

With the help of `sympy.combinatorics.Partition().rank` method, we can get the rank of an array of subarrays that is passed as parameters in `sympy.combinatorics.Partition().rank` method.

Syntax : `sympy.combinatorics.Partition().rank`
Return : Return the rank of subarrays.

Example #1 :
In this example we can see that by using `sympy.combinatorics.Partition().rank` method, we are able to get the rank of array of subarrays.

 `# import sympy and Partition``from` `sympy.combinatorics.partitions ``import` `Partition``from` `sympy ``import` `*` `x, y ``=` `symbols(``'x y'``)``  ` `# Using sympy.combinatorics.partitions.Partition().rank method``gfg ``=` `Partition([``1``, ``2``], [``4``, ``5``, ``6``], [``-``12``, ``-``11``])``  ` `print``(gfg.rank)`

Output :

119

Example #2 :

 `# import sympy and Relational``from` `sympy.combinatorics.partitions ``import` `Partition``from` `sympy ``import` `*` `x, y ``=` `symbols(``'x y'``)``  ` `# Using sympy.combinatorics.partitions.Partition().rank method``gfg ``=` `Partition([``3``], [``1``, ``91``], [``2``], [``6``])`` ` `print``(gfg.rank)`

Output :

47

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