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Everything about Simson line

Line constructed from a triangle

In geometry, given a triangle ABC and a point P on its circumcircle, the three closest points to P on lines AB, AC, and BC are collinear. The line through these points is the Simson line of P, named for Robert Simson. The concept was first published, however, by William Wallace in 1799, and is sometimes called the Wallace line. Wikipedia →

đź§­ Start here: a 6-step reading path

  1. Read the overview: Simson lineA 5-minute orientation
  2. Skim a recent paper: Wallace–Simson Theorem on Four Lines Parallel to a PlaneInfluential work since 2022
  3. Pick up a classic book: College geometryThe most-reprinted book on the subject
  4. Read the landmark paper: Countless Simson line configurationsCited 5 times
  5. Go sideways: Longuerre's theoremA closely related topic
  6. Go sideways: Pedal triangleA closely related topic

đź“– Definitions

No dictionary entry for this exact phrase.

🗂️ The subject at a glance

  1. Equation
  2. Properties
  3. Proof of existence
  4. Generalizations

🏆 Landmark papers (most cited)

🆕 Influential since 2022

📚 Books worth reading

Ranked by number of editions on Open Library, a rough measure of how lasting a book is.

đź”— Related topics