ϖ

ϖ U+03D6, ϖ GREEK PI SYMBOL ← ϕ Greek and Coptic ϗ →

ϖ

1. (mathematics) The lemniscate constant, a transcendental constant representing the ratio of the perimeter of Bernoulli's lemniscate to its diameter; approximately 2.62205755.
2. (mathematics) diameter of a model κ-plane:

   ${\displaystyle \varpi ^{\kappa }}$

3. (mathematics) uniformizer of a localisation of a number ring at a regular prime ideal:

   ϖ

4. (astronomy) perihelion, etc.:

   ${\displaystyle \varpi }$

5. (fluid dynamics) angular frequency of a wave

• This is a glyph variant of lower-case pi.

ϖ • (p) (uppercase Π, lowercase π)

1. Rare variant of the lower case letter pi (πι), the 16th letter of the modern Greek alphabet.

• (Greek-script letters) 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, Π π, Ρ ρ, Σ σ ς, Τ τ, Υ υ, Φ φ, Χ χ, Ψ ψ, Ω ω
• (non-Classical letters) Ϝ ϝ, Ͷ ͷ, Ͱ ͱ, Ϻ ϻ, Ϙ ϙ, Ͳ ͳ
• (punctuation) · ;
• (diacritics) ᾿ ῾ ◌́ ◌̀ ῀ ¨