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Everything about Diameter

Straight line segment that passes through the centre of a circle

In geometry, a diameter of a circle is any straight line segment that passes through the centre of the circle and whose endpoints lie on the circle. It can also be defined as the longest chord of the circle. Both definitions are also valid for the diameter of a sphere. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: DiameterA 5-minute orientation
  2. Skim a recent paper: Review of: "Normally, the length of nanowires is more than 1000 times greater than their diameter. This huge difference in ratio (length to diameter) compared to nanowires is often referred to as ۱D materials"Influential work since 2022
  3. Pick up a classic book: Fifty year canon of solar eclipses, 1986-2035The most-reprinted book on the subject
  4. Read the landmark paper: Single-shell carbon nanotubes of 1-nm diameterCited 8,184 times
  5. Go sideways: CircleA closely related topic
  6. Go sideways: MidpointA closely related topic

📖 Definitions

Noun Any straight line between two points on the circumference of a circle that passes through the center of the circle; a chord that passes through the center of the circle.

Noun The length of such a line.

Noun The maximum distance between any two points in a metric space.

Noun The maximum eccentricity over all vertices in a graph.

🗂️ The subject at a glance

  1. Constructions
  2. Symbol
  3. 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.

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