
Gallery of universal triangles.
Hexagram ijing 15.
1. Perfect world.
CRAB  cardinal sign and second quarter of zodiac.
SCORPIO  firm sign and third quarter of zodiac.
VIRGO  mutable sign and second quarter of zodiac.
2. Person.
LIBRA  cardinal mark and elements of air.
SCORPIO  firm mark and elements of water.
GEMINI  mutable mark and elements of air
3. Imperfect world  unconscious sphere.
GEMINI  initial third of astrological circle and symbol of air element.
SCORPIO  middle third of zodiacal circle and symbol of water element.
AQUARIUS  last third of astrological circle and symbol of air element.
4. Imperfect world  conscious sphere.
AQUARIUS  third segment of zodiacal chart and air natural elements.
SCORPIO  second segment of zodiacal chart and water natural elements.
GEMINI  first segment of zodiacal chart and air natural elements.
5. Discrete world  astral sphere.
AQUARIUS  area of slow planets  air elemental nature.
SCORPIO  area of less rapid planets  water elemental nature.
GEMINI  area of fast heavenly bodies  air elemental nature.
6. Discrete world  ethereal sphere.
LIBRA  slow heavenly bodies and air elementals.
CRAB  less rapid heavenly bodies and water elementals.
GEMINI  fast planets and air elementals.

The shown geometrical triangles and charts of world reality can interest mathematicians and people who are interested in mathematics, because hexagrams of the Chinese Book of Changes ijing are symbols which can be considered as numbers or ciphers of binary system of mathematical notation, and also as numerical signs which symbolize logic principles according to which dual or otherwise to tell dichotomizing structure of universe, and in particular structural matrix of discrete world is organized.
Next 16 hexagram.
Information about Chinese Book of Changes and
numbers of binary mathematical notation.