Hexaflexagon

A Flexagon made by folding a strip into adjacent Equilateral Triangles. Thenumber of states possible in a hexaflexagon is the Catalan Number .

References

Cundy, H. and Rollett, A. Mathematical Models, 3rd ed. Stradbroke, England: Tarquin Pub., pp. 205-207, 1989.

Gardner, M. Ch. 1 in The Scientific American Book of Mathematical Puzzles & Diversions. New York: Simon and Schuster, 1959.

Gardner, M. Ch. 2 in The Second Scientific American Book of Mathematical Puzzles & Diversions: A New Selection. New York: Simon and Schuster, 1961.

Maunsell, F. G. ``The Flexagon and the Hexaflexagon.'' Math. Gazette 38, 213-214, 1954.

Wheeler, R. F. ``The Flexagon Family.'' Math. Gaz. 42, 1-6, 1958.

• Hyperbolic Octahedron
• Hyperbolic Paraboloid
• Hyperbolic Partial Differential Equation
• Hyperbolic Plane
• Hyperbolic Point
• Hyperbolic Polyhedron
• Hyperbolic Rotation
• Hyperbolic Rotation (Crossed)
• Hyperbolic Secant
• Hyperbolic Sine
• Hyperbolic Space
• Hyperbolic Spiral
• Hyperbolic Spiral Inverse Curve
• Hyperbolic Spiral Roulette
• Hyperbolic Substitution
• Hyperbolic Tangent
• Hyperbolic Tetrahedron
• Hyperbolic Umbilic Catastrophe
• Hyperboloid
• Hyperboloid Embedding
• Hypercomplex Number
• Hypercube
• Hyperdeterminant
• Hyperellipse
• Hyperelliptic Function