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Qasr al-Jiss

قصر الجس

Qasr al-Jiss (Abbasid palace in Samarra), Iraq.

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Place of death of
al-Battani

People and things also explored

Sine-table computation in al-Battani's Zij· Antioch· Baghdad· Harran· al-Raqqa· al-Zij al-Sabi (The Sabian Zij)· De motu stellarum: Plato of Tivoli's Latin translation of al-Battani's Zij· Book on Knowing the Ascensions of the Signs between the Quadrants of the Sphere

Sources

  • Wikidata
Cite this page

islam.museum contributors. “Qasr al-Jiss”. islam.museum, https://islam.museum/en/place/qasr-al-jiss/. CC BY-SA 4.0. Last updated 2026-11-09.

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Sine-table computation in al-Battani's Zij

Documented computational refinement: half-chords of doubled arcs at half-degree steps, radius60 and forward/inverse interpolation; not invention of sine or interpolation itself.