Eta
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| |||
| Greek alphabet | |||
|---|---|---|---|
| Αα | Alpha | Νν | Nu |
| Ββ | Beta | Ξξ | Xi |
| Γγ | Gamma | Οο | Omicron |
| Δδ | Delta | Ππ | Pi |
| Εε | Epsilon | Ρρ | Rho |
| Ζζ | Zeta | Σσ | Sigma |
| Ηη | Eta | Ττ | Tau |
| Θθ | Theta | Υυ | Upsilon |
| Ιι | Iota | Φφ | Phi |
| Κκ | Kappa | Χχ | Chi |
| Λλ | Lambda | Ψψ | Psi |
| Μμ | Mu | Ωω | Omega |
| Other letters | |||
| Ϝϝ | Digamma | Ϟϟ | Koppa |
| Ϛϛ | Stigma | Ϡϡ | Sampi |
| Ͱͱ | Heta | Ϸϸ | Sho |
| Ϻϻ | San | ||
| Category•Commons | |||
Eta (uppercase/lowercase Η η) is a letter of the Greek alphabet. In very early Greek writing it stood for the consonant sound "h", but in Classical Greek it stood for a long vowel "e". In Modern Greek, it is pronounced as "i". In the system of Greek numerals, it has a value of 8. Letters that came from it include the Roman H and Cyrillic И.
In mathematics, the lowercase η is used to represent Dirichlet eta function.[1] The same letter is also used to represent conformal time in cosmology, efficiency in telecommunications and elasticity in economics.[2]
Related pages
References
- ↑ "Greek/Hebrew/Latin-based Symbols in Mathematics". Math Vault. 2020-03-20. Retrieved 2020-10-06.
- ↑ "Eta Symbol in Greek Alphabet". www.greeksymbols.net. Retrieved 2020-10-06.
