the elements of euclid, sometimes knows as the “the book of euclid”, and in the mathematical texts of the islamic period often referred to as “the book of the elements”, is one of the main sources of islamic mathematics. this paper addresses the history of the translation of this book and its recension by naṣīr al-dīn ṭūsī. then, through a comparison of the first chapter of the fourth part of q...

starting his intellectual life as a precociously young medical practitioner, quṭb al-dīn shīrāzī (634-710 a.h.) was compelled to wander far and wide in his quest for knowledge. recognized and admired as a savant, and enjoying the patronage of key political figures of his era, shīrāzī's activities as a scholar continued even during his appointment as judge in rūm, and while serving as ambas...

quṭb al-dīn al-shīrāzī (634h/1236ce-710h/1311ce) wrote four major works on astronomy: nihāyat al‐idrāk fī dirāyat al‐aflāk (“the utmost attainment in comprehending the orbs), in arabic, first edition completed mid-shaʿbān 680/november 1281); the ikhtiyārāt‐i muẓaffarī (“selections for muẓaffar al-dīn arslan” [a minor ruler in qasṭamūnī (modern kastamonu, turkey)], in persian, completed sometime...