The Seventh Book

  • Gerald J. Toomer
Part of the Sources in the History of Mathematics and Physical Sciences book series (SOURCES, volume 9)


From Apollonius to Attalus. Peace be on you. I have sent to you with this letter of mine the seventh book of the treatise on Conics. In this book are many wonderful and beautiful things on the topic of diameters and the figures constructed on them, set out in detail. All of this is of great use in many types of problems,1 and there is much need for it in the kind of problems which occur in conic sections which we mentioned,2 among those which will be discussed and proven in the eighth book of this treatise (which is the last book in its. I shall strive to send that to you speedily. Farewell.


Major Axis Minor Axis Transverse Diameter Latus Rectum Great Axis 
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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Gerald J. Toomer
    • 1
  1. 1.History of Mathematics DepartmentBrown UniversityProvidenceUSA

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