Special right triangle
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What links here
Triangle group
Schwarz triangle
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Hypergeometric function
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Dessin d'enfant
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Hyperbolic triangle
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Growth rate (group theory)
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Unit fraction
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Fuchsian group
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Discrete group
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Klein quartic
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Discrete geometry
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Modular group
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Coxeter group
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Orbifold
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Hyperbolic geometry
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Dicyclic group
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Von Dyck group
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