How to read them?

Always forget how to read them (the alphabet of greek letters, math symbols, etc), record here as reference:

α α Α β β Β γ γ Γ δ δ Δ ε ε Ε ζ ζ Ζ η η Η θ θ Θ ι ι Ι κ κ Κ λ λ Λ μ μ Μ ν ν Ν ο ο Ο ξ ξ Ξ π π Π ρ ρ Ρ σ σ Σ ς ς τ τ Τ υ υ Υ χ χ Χ ψ ψ Ψ φ φ Φ ω ω Ω ϑ ϑ ϒ ϒ ϖ ϖ

´ ´ ¸ ¸ ˆ ˆ ¯ ¯ ˜ ˜ ¨ ¨ ∧ ∧ ∠ ∠ ≈ ≈ „ „ • • ∩ ∩ ♣ ♣ ∪ ∪ † † ‡ ‡ ↓ ↓ ♦ ♦ ≡ ≡ € € ∃ ∃ ƒ ƒ ∀ ∀ ⁄ ⁄ ≥ ≥ > > ↔ ↔

&harr; ↔ &hArr; ⇔ &hearts; ♥ &hellip; … &infin; ∞ &int; ∫ &isin; ∈ &larr; ← &le; ≤ &loz; ◊ &laquo; « &ldquo; “ &lsaquo; ‹ &lsquo; ‘ &lt; < &mdash; — &micro; µ &middot; · &minus; − &nabla; ∇ &ndash; – &ne; ≠ &ni; ∋ &oline; ‾ &oplus; ⊕ &or; ∨ &part; ∂ &permil; ‰