# Unicode Cheatsheet for Greek & Math

I often find it useful to add some mathematical or greek symbols in my scientific computing Python programs (mainly in commentary). Here is a selection I've taken from Gnome Character Map for math. Greek was mainly generated by a Python script...

## Math

Arithmetic
plus-minus _ ±
multiplication _ ×
division _ ÷
power _  ² ³
root _ √ ∛
infinity _ ∞
Operators
integrals and sum _ ∫ ∬ ∑
partial diff.             _ ∂
increment/Laplace _ ∆ (different from Greek delta : Δ)
nabla                      _ ∇
expectation             _ ⟨⟩ [apparently the double-struck E symbol kills Worpress...]

### Relationships

• equality            = ≈ ≠ ≡
• inequality          < > ≤ ≥ ⩽ ⩾
• proportional to     ∝
• element of          ∈ ∉
• subset of           ⊂ ⊄
• quantifiers         ∀ ∃ ∄

### Sets

• integers            ℕ ℤ
• real numbers        ℝ
• complex numbers     ℂ
• empty set           ∅

### Arrows

• arrows : → ⟶ ⇒
• maps to : ↦ ⟼

## Greek

pairs of lower case and upper case letters (putting a dot on letters which have very similar latin counterparts)

α .
β .
γ Γ
δ Δ
ε .
ζ .
η .
θ Θ
. .
κ .
λ Λ
μ .
ν .
ξ Ξ
. .
π Π
ρ .
ς .
σ Σ
τ .
υ .
φ Φ (and also ϕ at U+03d5)
χ .
ψ Ψ
ω Ω

This greek table was first generated by these three lines of Python: