| symbol | name | keyboard |
|---|---|---|
| Α, α | Alpha | ALT-224 |
| B, β | Beta | ALT-225 |
| Γ, γ | Gamma | ALT-226 |
| Δ, δ | Delta | ALT-235,916 ⌥ j |
| Ε, ε | Epsilon | ALT-238 |
| Θ, θ | Theta | ALT-952 |
| Λ, λ | Lambda | ALT-995 |
| Μ, μ | Mu | ALT-230, ⌥ m |
| Π, π | Pi | ALT-227, ⌥ p |
| Σ, σ, ς | Sigma | ALT-228,229, ⌥ w |
| Φ, φ | Phi | ALT 232, 237 |
| Χ, χ | Chi | ALT 967, 935 |
| Ω, ω ς | Omega | ALT-234, ⌥ z |
| symbol | name | keyboard |
|---|---|---|
| ∈, ∊, ∉ | Element belongs to, doesn't belong to | |
| ℕ | Natural Numbers | |
| 𝕎 | Whole Numbers | |
| 𝕀 | Pure Imaginary | |
| ℤ | Integers, from German, "Zahlen" | |
| ℚ | Rationals. from Italian "Quoziente" | |
| ℙ | Irrational numbers (also ℝ∖ℚ is used) | |
| ℝ | Reals | |
| ℂ | Complex numbers |
| symbol | name | keyboard |
|---|---|---|
| ⁰ ₀ | super, subscript 0 | |
| ¹ ₁ | Super, subscript 1 | ALT-0185 |
| ² ₂ | Super, subscript 2 | ALT-253 |
| ³ ₃ | Super, subscript 3 | ALT-0179 |
| ₄ ⁴ | Super, subscript 4 | |
| ₅ ⁵ | Super, subscript 5 | |
| ₆ ⁶ | Super, subscript 6 | |
| ₇ ⁷ | Super, subscript 7 | |
| ₈ ⁸ | Super, subscript 8 | |
| ₉ ⁹ | Super, subscript 9 | |
| ⁱ ₑ ⁿ ˣ | i, e, n, x | n is ALT-252 |
| symbol | name | keyboard |
|---|---|---|
| ℵ | Hebrew aleph, the cardinality of infinite sets that can be well-ordered | ALT-0189 |
| ∀ | Turned A, universal quantification, "for all" ∀x | |
| Ǝ | Backwards E, "There exists" Ǝx | |
| ∄ | Turned E, "Does not exist" ∄pink_hippos | |
| ¬ | logical not ¬p |
| symbol | name | keyboard |
|---|---|---|
| sin⁻¹ | Inverse Sine | |
| cos⁻¹ | Inverse Cosine | |
| tan⁻¹ | Inverse Tangent | |
| 𝒻⁻¹(𝑥) | Inverse Function | |
| ° | degree | ALT-248, ⌥⇧8 |
| ∠, ⦜ | angle & right angle | |
| ⟂ | perpendicular angle symbol | |
| △, ⊿ | triangle, right-triangle | ⌥ j |
| symbol | name | keyboard |
|---|---|---|
| √ | square root | ALT-251, ⌥ v |
| ∛ ∜ | cube root & quad root | |
| ÷ | obelus (ah-bel-us), 6÷2=3 | ALT-246, ⌥ / |
| × | product, multiplication, times, 5×4=20 | |
| 𝑥 | italics x | |
| ℯ | base of natural logarithm e | |
| 𝒾 | italics i, imaginary number | |
| ∘ | function composition, as in f∘g | |
| ∫ | Integral for calculus | ⌥ b |
| ≈ | approximate, as in π ≈ 3.14 | ⌥ x |
| ≠ | not equal to, as in 1+1≠3 | ⌥ = |
| ≡ | modular arithmetic congruence | |
| ≅ | geometry congruence | |
| ± | plus or minus | ALT-241, ⌥ + |
| ∙ | multiplication dot or bullet | ALT-0149, ⌥ 8 |
| ⟌ | long division operator | |
| ≥ | greater than or equal to | ALT-242, ⌥ > |
| ≤ | less than or equal to | ALT-243, ⌥ < |
| ∪ | UNION, interval notation, "Joining" | ALT-8746 |
| ⋂ | INTERSECTION, interval notation, "overlap" | ALT-8745 |
| symbol | name | keyboard |
|---|---|---|
| ½ | one half | ALT-0189 |
| ⅓ | one third | |
| ¼ | one fourth | |
| ¾ | three fourths | ALT-0188 |
| symbol | name | keyboard |
|---|---|---|
| x̄ | x-bar sample mean | ALT-0189 |
| p̂ | p-hat proportion of a sample | |
| ŷ | y-hat predicted outcome | |
| μ | Mu, mean of a population | ALT-230, ⌥ m |
| σ | Sigma, population standard deviation | ALT-229, ⌥ w |
| symbol | name | keyboard |
|---|---|---|
| ⌊ ⌋ | Floor Function, example, ƒ(𝑥) = ⌊𝑥⌋ | |
| ⌈ ⌉ | Ceiling Function, example, ƒ(𝑥) = ⌈𝑥⌉ | |
| ¢ | American money unit cent | ALT-0189 |
| → | right pointing arrow | |
| ✓ | basic check mark ✓good job! | |
| ∞ | Infinity symbol, Lemniscate, pronounced (lem-nis-kit) |
ALT-236, ⌥ 5 |
| ƒ | italics f for functions | ⌥ f |
| | Apple Computer Logo | ⌥ K |