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SymPy | Polyhedron.array_form() in Python

  • Last Updated : 27 Aug, 2019

Polyhedron.array_form() : array_form() is a sympy Python library function that returns the indices of the corners of polyhedron.

Syntax :
sympy.combinatorics.Polyhedrons.Polyhedron.array_form()

Return :
indices of the corners of polyhedron

Code #1 : array_form() Example – tetrahedron




# Python code explaining
# SymPy.Polyhedron.array_form()
  
# importing SymPy libraries
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.polyhedron import tetrahedron, octahedron
  
# Using from 
# sympy.combinatorics.polyhedron.Polyhedron.array_form()
  
# Creating Polyhedron
a = tetrahedron.copy()
  
print ("Polyhedron - array_form form : ", a.array_form)
  
a.rotate(0)
print ("\nPolyhedron - array_form form : ", a.array_form)

Output :



Polyhedron – array_form form : [0, 1, 2, 3]

Polyhedron – array_form form : [0, 2, 3, 1]

Code #2 : array_form() Example – octahedron




# Python code explaining
# SymPy.Polyhedron.array_form()
  
# importing SymPy libraries
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.polyhedron import tetrahedron, octahedron
  
# Using from 
# sympy.combinatorics.polyhedron.Polyhedron.array_form()
  
# Creating Polyhedron
a = octahedron.copy()
  
print ("Polyhedron - array_form form : ", a.array_form)
  
a.rotate(0)
print ("\nPolyhedron - array_form form : ", a.array_form)

Output :

Polyhedron – array_form form : [0, 1, 2, 3, 4, 5]

Polyhedron – array_form form : [0, 2, 3, 4, 1, 5]




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