Yijing Hexagram Symbols is a Unicode block containing the 64 hexagrams from the I Ching. The term "pal-gwae" refers to the eight trigrams associated with the I Ching hexagrams. While there are 2, or eight, trigrams, there are 2, or 64, hexagrams. When you combine both hexagrams, you get the double-hexagram. Leibniz interpreted the hexagrams of the I Ching as evidence of binary calculus. When they incorporated star-shaped figures, these were more often hexagrams than pentagrams. The "I Ching" book consists of 64 hexagrams. To make a decision, Volz consulted the hexagrams of the I Ching. It was seen using hexagrams from I Ching to speak. Triangles and hexagrams are common, as are circles and lotuses of 4 to 1,000 petals. The 64 hexagrams are grouped into 32 pairs. Leibniz saw the hexagrams as an affirmation of the universality of his own religious belief. When examining the King Wen sequence of the 64 hexagrams, McKenna noticed a pattern. Only the hexagrams and line statements are used. The following table numbers the hexagrams in King Wen order.