# SymPy | Polyhedron.size () in Python

Python Methods and Functions

Polyhedron.size (): size () — nice Python library function that returns the number of polyhedron corners.

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

Return: count of number of corners of the polyhedron

Code # 1: size () Example — tetrahedron

 ` # Python code explaining ` ` # SymPy.Polyhedron.size () `   ` # import SymPy libraries ` ` from ` ` sympy.combinatorics ` ` import ` ` Permutation, Cycle ` ` from ` ` sympy.combinatorics.polyhedron ` ` import ` ` tetrahedron, octahedron `   ` # Use from ` ` # sympy.combinatorics.polyhedron.Polyhedron.size () `   ` # Create polyhedron `` a = tetrahedron.copy ()   print ( "Polyhedron - size form:" , a.size)   a.rotate ( 0 ) print ( "Polyhedron - size form:" , a.size) `

Output:

Polyhedron - size form: 4

Polyhedron - size form: 4

Code # 2: size () Example — octahedron

 ` # Python code explaining ` ` # SymPy.Polyhedron.size () `   ` # import SymPy libraries ` ` from ` ` sympy.combinatorics ` ` import ` ` Permutation, Cycle ` ` from ` ` sympy.combinatorics.polyhedron ` ` import ` ` tetrahedron, octahedron `   ` # Use from ` ` # sympy.combinatorics.polyhedron.Polyhedron.size () `   ` # Create polyhedron `  ` a ` ` = ` ` octahedron.copy () `   ` print ` ` (` ` "Polyhedron - size form:" ` `, a.size) `   ` a.rotate (` ` 0 ` `) ` ` print ` ` (` `" Polyhedron - size form: "` `, a.size) `

Output:

Polyhedron - size form: 6

Polyhedron - size form: 6