Approximately Equal To - Wiktionary

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In other projects Appearance move to sidebar hide From Wiktionary, the free dictionary See also: Appendix:Variations of "="
≅ U+2245, ≅ APPROXIMATELY EQUAL TO
← ≄[U+2244] Mathematical Operators ≆ →[U+2246]

Translingual

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Symbol

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≅

  1. (mathematics) Approximately equal to. (The addition of quotations indicative of this usage is being sought:)
  2. (geometry) Congruent to.
    • 2017, 專門用來打好幾何基礎的數學課本 [A mathematics textbook designed to build a good foundation in geometry], volume 1 (in Chinese), Wu-Nan Book Inc., →ISBN, page 95:如圖2.1-7，△ABC及△DEF兩三角形全等，△ABC ≅ △DEF。As shown in Figure 2.1-7, △ABC and △DEF are two congruent triangles, △ABC ≅ △DEF.
  3. (algebra, category theory, logic) Isomorphic to.
    • 2011 May 5, Clive Reis, Abstract Algebra: An Introduction To Groups, Rings And Fields (in English), World Scientific Publishing Company, →ISBN, page 137:Suppose that G ≅ H. Then there exists an isomorphism f, say, from G to H.
[edit]
  • = (equal to)
  • ∼
  • ≆
  • ≈
  • ≃
  • ≈ (almost equal to)
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