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Everything about Perpendicular

Relationship between two lines that meet at a right angle

In geometry, two geometric objects are perpendicular if they intersect at right angles, i.e. at an angle of 90 degrees or π/2 radians. The condition of perpendicularity may be represented graphically using the perpendicular symbol, ⟂. Perpendicular intersections can happen between two lines, between a line and a plane, and between two planes. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: PerpendicularA 5-minute orientation
  2. Skim a recent paper: Above-room-temperature strong intrinsic ferromagnetism in 2D van der Waals Fe3GaTe2 with large perpendicular magnetic anisotropyInfluential work since 2022
  3. Pick up a classic book: Der Beginn einer Spätgotik innerhalb der englischen Architektur zwischen 1370 und 1450The most-reprinted book on the subject
  4. Read the landmark paper: A perpendicular-anisotropy CoFeB–MgO magnetic tunnel junctionCited 3,582 times
  5. Go sideways: ParabolaA closely related topic
  6. Go sideways: Hypercycle (geometry)A closely related topic

📖 Definitions

Adjective At or forming a right angle (to something).

Adjective Exactly upright; extending in a straight line toward the centre of the earth, etc.

Adjective Independent of or irrelevant to each other; orthogonal.

Noun A line or plane that is perpendicular to another.

🏆 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.

🔗 Related topics