World Library  
Flag as Inappropriate
Email this Article


Article Id: WHEBN0003630344
Reproduction Date:

Title: Dinostratus  
Author: World Heritage Encyclopedia
Language: English
Subject: Menaechmus, Proclus, 320 BC, Quadratrix, 390s BC births
Collection: 320 Bc, 320 Bc Deaths, 320S Bc Deaths, 390 Bc, 390 Bc Births, 390S Bc Births, 4Th-Century Bc Greek People, Ancient Greek Mathematicians, Geometers
Publisher: World Heritage Encyclopedia


Born c. 390 BC
Died c.320 BC
Nationality Greek
Fields Mathematics
Known for squaring the circle

Dinostratus (Greek: Δεινόστρατος, c. 390 BCE – c. 320 BCE) was a Greek mathematician and geometer, and the brother of Menaechmus. He is known for using the quadratrix to solve the problem of squaring the circle.


  • Life and work 1
  • Citations and footnotes 2
  • References 3
  • External links 4

Life and work

Dinostratus' chief contribution to mathematics was his solution to the problem of squaring the circle. To solve this problem, Dinostratus made use of the trisectrix of Hippias, for which he proved a special property (Dinostratus' theorem) that allowed him the squaring of the circle. Due to his work the trisectrix later became known as the quadratrix of Dinostratus as well.[1] Although Dinostratus solved the problem of squaring the circle, he did not do so using ruler and compass alone, and so it was clear to the Greeks that his solution violated the foundational principles of their mathematics.[1] Over two thousand years later it would be proved impossible to square a circle using straight edge and compass alone.

Citations and footnotes

  1. ^ a b  



External links

  • .  

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.