U+27C2 Perpendicular
U+27C2 was added in Unicode version 4.1 in 2005. It belongs to the block
This character is a Math Symbol and is commonly used, that is, in no specific script. The character is also known as orthogonal to.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. The word that U+27C2 forms with similar adjacent characters prevents a line break inside it. The glyph can be confused with one other glyph.
The Wikipedia has the following information about this codepoint:
The up tack or falsum (⊥,
otin LaTeX, U+22A5 in Unicode) is a constant symbol used to represent:
- The truth value 'false', or a logical constant denoting a proposition in logic that is always false (often called "falsum" or "absurdum").
- The bottom element in wheel theory and lattice theory, which also represents absurdum when used for logical semantics
- The bottom type in type theory, which is the bottom element in the subtype relation. This may coincide with the empty type, which represents absurdum under the Curry–Howard correspondence
- The "undefined value" in quantum physics interpretations that reject counterfactual definiteness, as in (r0,⊥)
as well as
- Mixed radix decoding in the APL programming language
The glyph of the up tack appears as an upside-down tee symbol, and as such is sometimes called eet (the word "tee" in reverse). Tee plays a complementary or dual role in many of these theories.
The similar-looking perpendicular symbol (⟂,
perpin LaTeX, U+27C2 in Unicode) is a binary relation symbol used to represent:
- Perpendicularity of lines in geometry
- Orthogonality in linear algebra
- Independence of random variables in probability theory
- Coprimality in number theory
The double tack up symbol (⫫, U+2AEB in Unicode) is a binary relation symbol used to represent:
- Conditional independence of random variables in probability theory
Representations
| System | Representation |
|---|---|
| Nº | 10178 |
| UTF-8 | E2 9F 82 |
| UTF-16 | 27 C2 |
| UTF-32 | 00 00 27 C2 |
| URL-Quoted | %E2%9F%82 |
| HTML hex reference | ⟂ |
| Wrong windows-1252 Mojibake | ⟂ |
| alias | orthogonal to |
| Encoding: GB18030 (hex bytes) | 81 37 CF 32 |
Related Characters
Confusables
Elsewhere
Complete Record
| Property | Value |
|---|---|
| 4.1 (2005) | |
| PERPENDICULAR | |
| — | |
| Miscellaneous Mathematical Symbols-B | |
| Math Symbol | |
| Common | |
| Other Neutral | |
| Not Reordered | |
| none | |
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| ✘︎ | |
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| ✘︎ | |
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| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
|
|
|
| Any | |
| ✔︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| 0 | |
| 0 | |
| 0 | |
| ✘︎ | |
| None | |
| — | |
| NA | |
| Other | |
| — | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✔︎ | |
| ✘︎ | |
| Yes | |
| Yes | |
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| Yes | |
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| Yes | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✔︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| Other | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| Other | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
| ✘︎ | |
|
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| None | |
| neutral | |
| Not Applicable | |
| — | |
| No_Joining_Group | |
| Non Joining | |
| Alphabetic | |
| none | |
| not a number | |
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| R |