GlyphIndexExample notation
ξ = x − 2
This example defines a shifted variable.
Greek xi
Xi has uppercase Ξ and lowercase ξ forms. Capital Ξ is a letter, separate from the identical-to sign ≡.
GREEK CAPITAL LETTER XI
Appearance can vary by font.
Character details
♡→✦
3 code pointsMeaning and context
Xi has uppercase Ξ and lowercase ξ forms. Capital Ξ is a letter, separate from the identical-to sign ≡.
How to use it
The example defines ξ as x − 2. Copy the letter with its case intact, just as you would any other variable name.
Examples
Uppercase and lowercase
Ξ U+039E / ξ U+03BE
Uppercase and lowercase use different code points. Copy the case you need.
Similar shapes, different characters
Compare the lookalike
U+2261The capital letter has a different code point from the identical-to sign.
DetailsGreek small xi
U+03BECopy the lowercase letter when that is the case used in the source material.
Sources and method
- Unicode 18.0.0 character database — Pinned standard character identities and properties; the application computes UTF encodings from the original text.
- Unicode normalization forms (Unicode 18.0.0)