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Teorica 3 - Universidad de Buenos Aires

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Tablas <strong>de</strong> Ptolomeo<br />

Astronomía antigua Ptolomeo<br />

Mi<strong>de</strong> la cuerda <strong>de</strong> un ángulo en un círculo con radio r = 60<br />

Va <strong>de</strong> a 1/2 grado hasta 180 ◦<br />

Apenas tres cifras correctas<br />

Por su precisión, son utilizables hoy día<br />

Conocía i<strong>de</strong>ntida<strong>de</strong>s trigonométricas<br />

uan Pablo Pinasco ( Depto <strong>de</strong> Matemáticas FCEyN - UBA) Astronomía 2008 14 / 1

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