| MATHEMATICS | |
| Collatz Conjecture (working up from 1, numbers below 1000) |  |
| A chart of numbers and the most square rectangle they can be. Primes end up very tall, square numbers are actually square. Below is a later version continued up to 100 |  |
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| A diagram of numbers and their divisors. Yellow is prime numbers, blue is highly composite numbers. Coloured products of division are all whole numbers. The black line joins square numbers. |  |
| Cistercian Numbers Invented by medieval monstary |  |
| Four Fours Solutions to the first sixty numbers Te key shows an explanation to the units used and how they are made fo fours. The idea here is to make as many nubmers as possible using four "4" and as many operands as needed. Note that power numbers count. |  |
| First ~100 numbers in Modulus 6, showing patterns of primes and polygonal numbers |  |
| First ~100 numbers in Mod 10, showing patterns of primes and polygonal numbers |  |
| First ~100 numbers in Mod 12, showing patterns of primes and polygonal numbers |  |
| Number types as a Euler diagram If you have details or fixes for this, please let me know |  |
| Origami bases relationships |  |
| Polygon types tree If you know of more terms for pentagons, please let me know |  |
| Polyhedra types A diagram of all regular, semi-regular and select other solids. |  |
| Polyhedra regular apex types. |  |
| Polyhedra semi-regular apex types. |  |
| Sprouts maths game diagram. Each player takes a turn joining two dots and with a line and putting |  |
| A chart of Stellar Polygons with 12 or fewer corners |   |
| A chart of numbers and their word length |  |