Editing Upsilon (section)

== Usage ==
* In [[particle physics]] the capital Greek letter ϒ denotes an [[Upsilon particle]]. Note that the symbol should always look like <math>\,\Upsilon</math> in order to avoid confusion with a Latin Y denoting the [[hypercharge]]. This may be done either with a font such as FreeSerif or with the dedicated Unicode character U+03D2 ϒ.
* Automobile manufacturer [[Lancia]] has a model called the [[Lancia Ypsilon|Ypsilon]].
* In the [[International Phonetic Alphabet]], the symbol {{angbr IPA|ʋ}} is used to represent a [[labiodental approximant]].
* In [[astrophysics]] and [[physical cosmology]], ϒ refers to the [[mass-to-light ratio]].<ref>Mihalas and McRae (1968), ''Galactic Astronomy'' (W. H. Freeman)</ref>
* In [[statistics]], it is sometimes used instead of v or nu to indicate [[degrees of freedom (statistics)|degrees of freedom]].<ref>{{cite book|title=Probability and Statistics for Scientists and Engineers|edition=9th|year=2017|last = Walpole|first=Ronald}}</ref>
* In the [[Persian language|Persian]] language, “one upsilon” is used to describe a positive amount close to 0 (zero).{{cn|date=November 2024}}

===Similar appearance===
* A similar symbol {{unichar|2648}} is used for the [[astrological sign]] of [[Aries (astrology)|Aries]].