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  2. Tangent - Wikipedia

    en.wikipedia.org/wiki/Tangent

    Similarly, the tangent plane to a surface at a given point is the plane that "just touches" the surface at that point. The concept of a tangent is one of the most fundamental notions in differential geometry and has been extensively generalized; see Tangent space. The word "tangent" comes from the Latin tangere, "to touch".

  3. Tangent lines to circles - Wikipedia

    en.wikipedia.org/wiki/Tangent_lines_to_circles

    In Euclidean plane geometry, a tangent line to a circle is a line that touches the circle at exactly one point, never entering the circle's interior. Tangent lines to circles form the subject of several theorems , and play an important role in many geometrical constructions and proofs .

  4. Tangent circles - Wikipedia

    en.wikipedia.org/wiki/Tangent_circles

    In geometry, tangent circles (also known as kissing circles) are circles in a common plane that intersect in a single point. There are two types of tangency : internal and external. Many problems and constructions in geometry are related to tangent circles; such problems often have real-life applications such as trilateration and maximizing the ...

  5. Tangent space - Wikipedia

    en.wikipedia.org/wiki/Tangent_space

    In algebraic geometry, in contrast, there is an intrinsic definition of the tangent space at a point of an algebraic variety that gives a vector space with dimension at least that of itself. The points p {\displaystyle p} at which the dimension of the tangent space is exactly that of V {\displaystyle V} are called non-singular points; the ...

  6. Analytic geometry - Wikipedia

    en.wikipedia.org/wiki/Analytic_geometry

    In geometry, the tangent line (or simply tangent) to a plane curve at a given point is the straight line that "just touches" the curve at that point. Informally, ...

  7. Tangent vector - Wikipedia

    en.wikipedia.org/wiki/Tangent_vector

    In mathematics, a tangent vector is a vector that is tangent to a curve or surface at a given point. Tangent vectors are described in the differential geometry of curves in the context of curves in R n. More generally, tangent vectors are elements of a tangent space of a differentiable manifold. Tangent vectors can also be described in terms of ...

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    Concert math = big shows or bust. Stadium tours for mega stars like Beyoncé and Taylor Swift sell out within minutes. But thanks to a slowdown in post-pandemic revenge spending, tickets for ...

  9. Tangential angle - Wikipedia

    en.wikipedia.org/wiki/Tangential_angle

    In geometry, the tangential angle of a curve in the Cartesian plane, at a specific point, is the angle between the tangent line to the curve at the given point and the x-axis. [1] (Some authors define the angle as the deviation from the direction of the curve at some fixed starting point.

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