- generalPlotter für Funktionen z = f(x,y) mit gekachelten FlächenMystic Rose and HandshakesImbalance ProblemsImbalance ProblemsSquare Not SquareEscherized TessellationEscher's Pegasus TessellationFortune Telling CardsGeoGebra Mind ReaderWheel of fortune. Rad van fortuinRolling Quarter PuzzleTibetan MandalaMandalaOmar Khayyam's approach to solving certain cubic equations
