| 1. | In any case, the article spherical trigonometry may be of your interest.
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| 2. | Muslim mathematicians introduced Euclidean Geometry, Spherical trigonometry and Arabic numerals in China.
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| 3. | The first success of quaternions was a rendering of spherical trigonometry to algebra.
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| 4. | He also discovered spherical trigonometry, along with other interesting trigonometrical results.
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| 5. | Muslim mathematicians developed spherical trigonometry in order to make these calculations.
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| 6. | Muslim mathematicians developed spherical trigonometry which was used in these calculations.
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| 7. | Nasir al-Din Tusi ( Nasireddin ) made advances in spherical trigonometry.
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| 8. | Throughout his life he also did extensive work with spherical trigonometry.
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| 9. | Thus spherical trigonometry differs from ordinary trigonometry in many respects.
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| 10. | He was one of the first mathematicians in China to work on spherical trigonometry.
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