Mu’ayyad al-Din al-’Urdi (died 1266) was an Muslim astronomer , mathematician , architect and engineer working at the Maragheh observatory . H…
Read moreSharaf al-Dīn al-Muẓaffar ibn Muḥammad ibn al-Muẓaffar al-Ṭūsī (died 1213/4) [ 1 ] was a Persian mathematician and astronomer of the Isla…
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