Indicatrix

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Indicatrix may refer to:

  • Dupin indicatrix, a conic section which describes the local shape of a surface
  • Tissot's indicatrix, which describes and visualizes the distortion of a map
  • Indicatrix, a special case of the index ellipsoid used in optics to describe properties of crystals
  • Tangent indicatrix, an object in differential geometry related to a closed space curve