ISO TC 211 Geographic information/Geomatics Committee site

ISO/TC 211 Geolexica

Concept tangent <differential geometry, calculus>”

Term ID

2091

source

ISO 19107:2019, (E), 3.92

eng

tangent <differential geometry, calculus>

direction indicating the instantaneous direction of a curve at a point

Note to entry: The tangent is usually calculated by differentiation of a functional representation of a curve but it may be approximated by a secant (double intersection) line from the point passing through another nearby point on the curve. The closer the second point is to the first, the better the approximation of the tangent's direction.

ORIGIN: ISO/TC 211 Glossary of Terms - English (last updated: 2020-06-02)

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info

  • status: valid
  • classification: preferred
  • date accepted: 2019-12-02

Review

last review performed:
(2019-12-02)
status:
final
decision:
accepted
decision event:
Normal ISO processing
notes:
Publication of document ISO 19107:2019(E)