SymPy | Polyhedron.array_form() in Python

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]