What is Greek alphabet?
{{Infobox writing system |name = Greek alphabet |sample = Greekalphabet.svg |imagesize = 250px |type = [[Alphabet]] |languages = [[Greek language|Greek]] |time = {{nowrap|c. 800 BC –}} present |fam1 = [[Egyptian hieroglyphs]] |fam2 = [[Proto-Sinaitic alphabet]] |fam3 = [[Phoenician alphabet]] |children = {{hlist|style=line-height:1.35em; |[[Gothic alphabet|Gothic]] |[[Glagolitic alphabet|Glagolitic]] |[[Cyrillic script|Cyrillic]] |[[Coptic alphabet|Coptic]] |[[Armenian alphabet|Armenian]] |[[Old Italic script|Old Italic]] |[[Latin alphabet|Latin]] |[[Georgian scripts|Georgian]]}} |unicode = {{ublist |class=nowrap |[https://www.unicode.org/charts/PDF/U0370.pdf U+0370–U+03FF] {{smaller|Greek and Coptic}} |[https://www.unicode.org/charts/PDF/U1F00.pdf U+1F00–U+1FFF] {{smaller|Greek Extended}}}} |iso15924 = Grek |note = none }} The '''Greek alphabet''' is a [[writing system]] that has 24 letters. It is used to write the [[Greek language]]. Greek letters are also frequently used in [[science]] and [[mathematics]] to represent various values or [[variable]]s.<ref>{{Cite web|date=2020-03-20|title=Greek/Hebrew/Latin-based Symbols in Mathematics|url=https://mathvault.ca/hub/higher-math/math-symbols/greek-hebrew-latin-symbols/|access-date=2020-10-02|website=Math Vault|language=en-US}}</ref><ref>{{Cite web|title=Greek alphabet letters & symbols (α,β,γ,δ,ε,...)|url=https://www.rapidtables.com/math/symbols/greek_alphabet.html|access-date=2020-10-02|website=www.rapidtables.com}}</ref> Most letters in the Greek alphabet have an equivalent in the [[English language]].<ref>{{Cite web|title=The Greek Alphabet|url=https://web.mit.edu/jmorzins/www/greek-alphabet.html|access-date=2020-10-02|website=web.mit.edu}}</ref> The twenty-four letters (each in [[letter case|uppercase and lowercase forms]]) are: [[Α]] α, [[Β]] β, [[Γ]] γ, [[Δ]] δ, [[Ε]] ε, [[Ζ]] ζ, [[Η]] η, [[Θ]] θ, [[Ι]] ι, [[Κ]] κ, [[Λ]] λ, [[Μ]] μ, [[Ν]] ν, [[Ξ]] ξ, [[Ο]] ο, [[Pi (letter)|Π]] π, [[Ρ]] ρ, [[Σ]] σ or ς, [[Τ]] τ, [