In mathematics, the flatness (symbol: ⏥) of a surface is the degree to which it approximates a mathematical plane. The term is often generalized for higher-dimensional manifolds to describe the degree to which they approximate the Euclidean space of the same dimensionality. (See curvature.)[1]
Flatness in homological algebra and algebraic geometry means, of an object in an abelian category, that is an exact functor. See flat module or, for more generality, flat morphism.[2]
Character encodings
| Preview | ⏥ | |
|---|---|---|
| Unicode name | FLATNESS | |
| Encodings | decimal | hex |
| Unicode | 9189 | U+23E5 |
| UTF-8 | 226 143 165 | E2 8F A5 |
| Numeric character reference | ⏥ | ⏥ |
See also
References
- ↑ Committee 117, A. C. I. (November 3, 2006). Specifications for Tolerances for Concrete Construction and Materials and Commentary. American Concrete Institute. ISBN 9780870312212 – via Google Books.
{{cite book}}: CS1 maint: numeric names: authors list (link) - ↑ Ballast, David Kent (March 16, 2007). Handbook of Construction Tolerances. John Wiley & Sons. ISBN 9780471931515 – via Google Books.
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