Zeta Symbol
About Zeta Symbol
ζ is the Zeta Symbol, the lowercase form of the 6th letter of the Greek alphabet (Ζ / ζ). The Zeta Symbol ζ is among the most common Greek letters in scientific and technical literature, frequently used for It appears in the Riemann zeta function and as the damping ratio of vibrating systems.
【Pronunciation】 In English, ζ is most often pronounced ZEE-tuh or ZAY-tuh (IPA: /ˈziːtə, ˈzeɪtə/). This is simply the anglicized name of the Greek letter.
The lowercase Zeta Symbol ζ is written as a distinct Greek glyph and is assigned codepoint U+03B6 in the Greek and Coptic Unicode block. In plain or sans-serif fonts it can be mistaken for the Latin letter z, so verify the typeface or context.
【Historical Origin】 Zeta derives from the Phoenician letter zayin and became famous through the Riemann hypothesis.
【Common Uses】 ζ is highly active across disciplines: It appears in the Riemann zeta function and as the damping ratio of vibrating systems. It often appears alongside the uppercase Sigma Σ and lowercase Sigma σ in formulas, papers, and engineering drawings.
How to Type Zeta Symbol
Windows Input
Method 1: Hold Alt and type 950 on the numeric keypad, then release Alt to get ζ.
Mac Input
Method 2: Press Control + Command + Space to open the Character Viewer, search for 'greek' or 'Zeta Symbol', then select ζ.
HTML/CSS Input
Method 3: HTML: ζ or ζ or ζ; CSS: content: "\03B6";
LaTeX Input
Method 4: Use the \zeta command in LaTeX math mode to produce ζ.
Zeta Symbol FAQ
How is ζ pronounced?
The English pronunciation of ζ is ZEE-tuh or ZAY-tuh (IPA: /ˈziːtə, ˈzeɪtə/). It is the anglicized name of the Greek letter, used directly rather than described as 'lowercase ζ'.
What is the difference between ζ and the Latin letter z?
ζ (U+03B6) is a Greek lowercase letter, whereas z is a Latin letter; their codepoints and glyphs differ. In a proper typeface ζ and z are clearly distinct, but in plain text or sans-serif fonts they can be confused, so rely on context.
How do I type ζ in Word, web pages, and LaTeX?
On Windows use Alt+950 on the numeric keypad; on Mac open the Character Viewer and search 'greek' or 'Zeta Symbol'; on the web use the HTML entity ζ; in LaTeX use \zeta. For bulk use, copy ζ directly from this page.