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Mathematical Treasure: Albert of Saxony’s Treatise on Proportions

Author(s): 
Frank J. Swetz (The Pennsylvania State University)

Albert of Saxony (ca. 1320-1390) was a German philosopher and natural scientist. In his Tractatus proportionum, he examined the concept of motion, building on the works of his fellow speculative philosopher, Thomas Bradwardine (ca. 1295-1349). The edition examined here was published in 1477.

Title page of Tractatus proportionum by Albert of Saxony

The first page of the text is shown below.

Sample page from Tractatus proportionum by Albert of Saxony

The images above were obtained through the courtesy of the University of California Libraries. The work may be viewed in its entirety at Google Books.

Index to Mathematical Treasures 

Frank J. Swetz (The Pennsylvania State University), "Mathematical Treasure: Albert of Saxony’s Treatise on Proportions ," Convergence (July 2017)

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