When it comes to Formulas, people will relate to Math & Sciences. Yet, VDC, a book on the Philosophy of Changes, spirituality & Yin Yang
DTV coi quái Càn, Tinh thần, vô hình, vô hạn, vạch liền, số lượng lẻ, vòng tròn & màu đen là âm, còn quái Khôn,... More Five Interactions contains formulas. Especially, they are not merely simple ...
History & Diagrams of the I Ching
I Ching (Chinese: 易經) or Book of Changes, with its symbol Tai Chi, is considered one of the Five Classics, expressing the philosophy of the ancient China with profound influence in the Far East & Vietnam for thousands of years.