The Date of the Completion
Dating the Completion on the basis of the available evidence is not easy. The Completion is undated and it is not mentioned in the three lists of works of Ibn al-Haytham (§5.1). The Completion does not contain references to any work other than the Conics. As far as I know, Ibn al-Haytham does not refer to the Completion in any of his other works. But there are a few indications suggesting that the Completion is not a late work of Ibn al-Haytham.
KeywordsConic Section Arabic Version Arabic Text Circular Surface Relative Chronology
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