- is the only
stellation of the octahedron. It is also
called the
stella octangula (Latin for "eight-pointed star"), a name
given to it by
Johannes Kepler...
- not the sum of
proper divisors of any
positive number. It is a
stella octangula number, the
number of
spheres packed in the
shape of a
stellated octahedron...
- mathematics, a
stella octangula number is a
figurate number based on the
stella octangula, of the form n(2n2 − 1). The
sequence of
stella octangula numbers is 0...
- of 14 degrees.p.139 14 is also the root (non-unitary)
trivial stella octangula number,
where two self-dual
tetrahedra are
represented through figurate...
- and
preceding 246. Additionally, 245 is: a
composite number. a
stella octangula number.
palindromic in
bases 34 (7734) and 48 (5548) a
Harshad number...
- as a demicube.
These two
together form a
regular compound, the
stella octangula. The
intersection of the two
forms a
regular octahedron. The symmetries...
- dual
tetrahedra is an octahedron, and this compound,
called the
stella octangula, is its
first and only stellation. Correspondingly, a
regular octahedron...
-
Stella octangula as a
faceting of the cube In geometry,
faceting (also
spelled facetting) is the
process of
removing parts of a polygon,
polyhedron or...
- This
uniform polyhedron compound is a
composition of two
truncated tetrahedra,
formed by
truncating each of the
tetrahedra in the
stellated octahedron...
-
comprising two such dual
tetrahedra form a
stellated octahedron or
stella octangula. The
following Cartesian coordinates define the four
vertices of a tetrahedron...
