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Viewing Version 8 of 'Archimedes' calculus'
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Title of object: Archimedes' calculus
Canonical Name: ArchimedesCalculus
Type: Definition

Created on: 2008-07-14 09:44:18
Modified on: 2008-07-18 22:46:00

Creator: milogardner
Modifier: milogardner
Author: milogardner

Classification: msc:01A20
Synonyms: Archimedes' calculus=differential calculus

Preamble:

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Content:

The differential calculus of Archimedes has been passed down to the modern era within one text, an erasable parchment (palimpsest). The information had not been recorded in Archimedes' handwriting. Worse, the parchment's calculus information had been copied over hundreds of years, and erased in 1,100 AD by Byzantine priests. Byzantines used the vellum paper to write religious texts.

In 1906 J.L. Heiberg read the text, decoding large chunks of the erased information. He found a calculus method that exactly sums an infinite slice of a parabola. The calculus method did not use the method of exhaustion as often reported in math history texts. \PMlinkexternal{E.J. Dijksterhuis}{http://mathforum.org/kb/message.jspa?messageID=5847373&tstart=90} included Heiberg's view of the information in a 1987 biography of Archimedes, published by Princeton Press. Dijksterhuis cited a 1/4 geometric infinite series:

$$4A/3 = A + A/4 + A/16 + A/64 + ... $$

proven by a finite Egyptian fraction series:

$$4A/3 = A + A/4 + A/12$$

As many recall, the document came on the open market a few years ago. It was auctioned for 2,000,000 dollars. NOVA reported a revised analysis of the text that was suggested by its new owners. The NOVA program did not include Heiberg and Dijksterhuis' 1/4 geometric series method written as a finite series in its review. \PMlinkexternal{Stanford University investigators}{http://www.archimedespalimpsest.org/mediacenter_presskit.html} have published one translation of the document. A debate on the details of Archimedes' differential calculus should include a Eudoxian tradition that Archimedes likely followed.