Python | sympy from_rgs() method

With the help of sympy.combinatorics.Partition.from_rgs() method, we can get the array of subarrays by passing array of indexes and list of members by using sympy.combinatorics.Partition.from_rgs() method.

Syntax : sympy.combinatorics.Partition.from_rgs()

Return : Return the array of subarrays.

Example #1 :
In this example we can see that by using sympy.combinatorics.Partition.from_rgs() method, we are able to get the array of subarray by passing array of indexes and list of members as passed by parameters.

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# import sympy and Relational
from sympy.combinatorics.partitions import Partition
from sympy import * 
  
x, y = symbols('x y')
  
# Using from sympy.combinatorics.Partition.from_rgs() method
gfg = Partition.from_rgs([0, 1, 2, 0, 1, 2], list('abcdef'))
  
print(gfg)

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Output :

{{a, d}, {b, e}, {c, f}}

Example #2 :

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# import sympy and Relational
from sympy.combinatorics.partitions import Partition
from sympy import * 
  
x, y = symbols('x y')
  
# Using from sympy.combinatorics.Partition.from_rgs() method
gfg = Partition.from_rgs([0, 1, 2, 0, 1, 2, 3, 4, 3, 4, 0, 1, 5],
                          list('abcdefghijklm'))
  
print(gfg)

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Output :

{{m}, {c, f}, {g, i}, {h, j}, {a, d, k}, {b, e, l}}



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