The transmission of Hindu-Arabic numerals reconsidered / Paul Kunitzsch -- The transmission of Arabic astronomy via Antioch and Pisa in the second quarter of the twelfth century / Charles Burnett -- The many aspects of "appearances": Arabic optics to 950 AD / Elaheh Kheirandish -- Ibn al-Haytham's revolutionary project in optics: the achievement and the obstacle / A.I. Sabra -- Mathematics and philosophy in medieval Islam / Gerhard Endress -- Tenth-century mathematics through the eyes of Abๅu Sahl al-Kๅuhๅi / J. Lennart Berggren -- Quadratus mirabilis / Jacques Sesiano -- Calculating surgace areas and volumes in Islamic architecture / Yvonne Dold-Samplonius -- The Sarvasiddhๅantarๅaja of Nityๅananda / David Pingree -- On the lunar tables in Sanjaq Dๅar's Zๅij al-Sharๅif / Julio Samsโo -- A panorama of research on the history of mathematics in al-Andalus and the Maghrib between the ninth and sixteenth centuries / Ahmed Djebbar -- Another Andalusian revolt? Ibn Rushd's Critique of al-Kindๅi's Pharmacological Computus / Y. Tzvi Langermann