The 2nd Scientific American Book of Mathematical Puzzles & Diversions, a New SelectionMathematical puzzles from origami to recreational logic, from digital roots and dudeny puzzles to the diabolic square, from the golden ratio to the generalized ham sandwish theorem. |
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Contents
INTRODUCTION | 9 |
Tetraflexagons 24 2222222 | 24 |
Englands | 32 |
Copyright | |
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answer Brown cache called cells CHAPTER chord circle coconuts color column component squares cork plug corner crease cube dealer diabolic squares diagonals dice digital root disks dissection divided dots doughnut draw Dudeney Dudeney's edge equal equations exactly example faces finite number five flexagons flexatube folded four golden ratio golden rectangle hypercube icosahedron letter logarithmic spiral magic square mathematician mathematics Matrix maze method monkey move multiple of 9 obtain octahedron odd number Origami paper pattern pencil perfect rectangles perfect square perpendicular pieces Piet Hein plane Platonic solids play player polygon possible probability problem procedure random readers remaining rotor rule Scientific American segment shown in Figure simple smallest Smith diagram solids solution solved Soma squared rectangles starter pile structure survival chances tangrams tetrahedron theorem theory tion turn warden