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
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.polyhedron import tetrahedron, octahedron
a = tetrahedron.copy()
print ( "Polyhedron - array_form form : " , a.array_form)
a.rotate( 0 )
print ( "\nPolyhedron - array_form form : " , a.array_form)
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Output :
Polyhedron – array_form form : [0, 1, 2, 3]
Polyhedron – array_form form : [0, 2, 3, 1]
Code #2 : array_form() Example – octahedron
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.polyhedron import tetrahedron, octahedron
a = octahedron.copy()
print ( "Polyhedron - array_form form : " , a.array_form)
a.rotate( 0 )
print ( "\nPolyhedron - array_form form : " , a.array_form)
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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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