File:Upsilon_uc_lc.svg · Wikimedia Commons · See Wikimedia Commons
AI overview
Upsilon (Υ) is the twentieth letter of the Greek alphabet that represents the number 400 in the ancient Greek numeral system. It originated from the Phoenician letter waw and remains part of the Greek writing system used today.
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Wikidata facts
- Part of
- Greek alphabet
- Followed by
- Φ/φ
- Follows
- Τ
- Image
- Greek lc upsilon.svg
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- Commons category
- Upsilon (letter)
- Unicode character
- ϒ
- different from
- Y
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- Υ
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Article · 中文
Upsilon（大写Υ，小写υ，中文音译：宇普西龙），是第二十个希腊字母。Upsilon 的希臘語是 υ ψιλόν，意思是「簡單的 u」。 西里尔字母的 У 及拉丁字母的 F、U、V、W 和 Y 都是由 Upsilon 演变而成。 大寫的Υ表示粒子物理學中由底夸克及其反夸克組成的Υ介子。
Abstract from DBpedia / Wikipedia · CC BY-SA
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