Creates a special kind of summation formula created by John Conway.
Explains Conway's audioactive decay that is generated by a particular kind of sequence. Includes illustrations and related resources.
Includes description, solutions and other resources on this cube-like puzzle.
The relation between Fibonacci numbers and Pascal's triangle. English/German/Serbian.
Three categories: defensive - know to check an answer, offensive - fast mental calculations, and math magic.
Topics include Flexagon, Soma Cube, Pentominos, Cube-it, Rubik's Cube, Froebel's Star, Tangram, House of Santa Claus, Chronogram, Numeric Palindromes, Latticework of Letters. English/German.
Includes puzzles, jokes, quotations, poetry, and FAQs.
Include news, math tricks, methods, facts, trivia, mostly posted by users.
Visual animations of famous curves.
Interactive java puzzles and activities in different mathematical topics.
Arts /
Crafts /
Origami /
Geometry_and_Modulars
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