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Everything about Tangent

In mathematics, straight line touching a plane curve without crossing it

In geometry, the tangent line (or simply tangent) to a plane curve at a given point is, intuitively, the straight line that "just touches" the curve at that point. Leibniz defined it as the line through a pair of infinitely close points on the curve. More precisely, a straight line is tangent to the curve y = f(x) at a point x = c if the line passes through the point (c, f(c)) on the curve and has slope f'(c), where f' is the derivative of f. A similar definition applies to space curves and curves in n-dimensional Euclidean space. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: TangentA 5-minute orientation
  2. Skim a recent paper: Arrhenius activation energy of tangent hyperbolic nanofluid over a cone with radiation absorptionInfluential work since 2022
  3. Pick up a classic book: An elementary treatise on the geometry of conicsThe most-reprinted book on the subject
  4. Read the landmark paper: Improved tangent estimate in the nudged elastic band method for finding minimum energy paths and saddle pointsCited 9,399 times
  5. Go sideways: SlopeA closely related topic
  6. Go sideways: Differential calculusA closely related topic

📖 Definitions

Noun A straight line touching a curve at a single point without crossing it there.

Noun A function of an angle that gives the ratio of the sine to the cosine, in either the real or complex numbers. Symbols: tan, tg.

Noun A course suddenly and unexpectedly divergent from one which was previously being followed (especially one embarked on before reaching the end of the previous course). A new topic of discussion unrelated to the one which came before it, arrived at due to a single (peripheral or trivial) point in common with it.

Noun A new topic of discussion unrelated to the one which came before it, arrived at due to a single (peripheral or trivial) point in common with it.

🏆 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