Different helpers and symbols for create different scientific document.
I don't know if for you guys is easy when you need to type some Maths symbols the is not in your keyboard, but for me is not, for this reason I create this short math symbol list.
⟨ ⟩ ⟦ ⟧ ⌊ ⌈ ⌋ ⌉ ↑ ⇐ ← ↦ ℰ ℓ ℒ ℳ ’ “ ” – —
½ ¼ ∕ ∤ ⊥ ∥ ‰ ø ≪ ≫ ~ ⊢ ⊨ ℂ ℕ ℙ ℚ ℝ ℤ
Γ Δ Λ Ξ Π Σ Φ Ψ Ω ℏ ∞ ∘ ∂ ∫ ∮ ∯ ∇ ′ ″ ‴
α β γ δ ε ζ η θ κ λ μ ν ξ π ρ σ τ υ φ χ ψ ω
⇒ → ⇔ ↔ ∈ ∉ ⊂ ⊆ ⊄ ⊈ ⊃ ∪ ∩ ∖ ∅ ∏ ∑̅̂⃗̇̈ ∑
¬ ∨ ∧ ⊕ ∀ ∃ − ± · × ÷ ² ³ √ ∛ ≠ ≈ ≡ ≝ ≤ ≥ ° ∠
Compare:
∀(x, y ∈ A ∪ B; x ≠ y) x² − y² ≥ 0
For all (x, y :- A u B; x != y) x^2 - y^2 >= 0
| Symbol | Meaning | Example |
|---|---|---|
| + | add | 3+7 = 10 |
| - | subtract | 5−2 = 3 |
| x | multiply | 4×3 = 12 |
| ÷ | divide | 20÷5 = 4 |
| / | divide | 20/5 = 4 |
| ( ) | grouping symbols | 2(a−3) |
| [ ] | grouping symbols | 2[ a−3(b+c) ] |
| { } | set symbols | {1, 2, 3} |
| π | pi | A = πr2 |
| ∞ | infinity | ∞ is endless |
| = | equals | 1+1 = 2 |
| ≈ | approximately equal to π | π≈3.14 |
| ≠ | not equal to | π ≠ 2 |
| < ≤ | less than, less than or equal to | 2 < 3 |
| > ≥ | greater than, greater than or equal to | 5 > 1 |
| √ | radical symbol square root ("radical") | √4 = 2 |
| ° | degrees | 20° |
| ∴ | therefore | a=b ∴ b=a |
| name | usage | |
|---|---|---|
| $ | dollar | United States (USD), Canada (CAD), Australia (AUD), etc. |
| € | euro | Eurozone (EUR) |
| ¢ | cent | 1/100 of a dollar or euro |
| £ | pound | United Kingdom (GBP) |
| ¥ | yen | Japan (JPY) |
| ₿ | bitcoin | cryptocurrency (XBT, BTC) |
| ฿ | baht | Thailand (THB) |
| ₫ | dong | Vietnam (VND) |
| ₴ | hryvnia | Ukraine (UAH) |
| ₪ | shekel | Israel (ILS) |
| ₽ | ruble | Russia (RUB) |
| ₹ | rupee | India (INR) |
| ₩ | won | South Korea (KRW) |
★ ☆ ☀ ☼ ☁ ☂ ☃ ❄ ☽ ✂ ✋ ♿ ⌖ ☯ ☢ ⚑ ♀ ♂ ⚠︎
☎ ✆ ✈ ✉ ✍ ✎ ▪ ■ ● ◀︎ ▶︎ ▲ ▼ ▫︎ □ ○ ◌ ◁︎ ▷ △ ▽
♥ ♦ ♠ ♣ ♭ ♯ ♮ ♩ ♪ ♫ ♬ ✓ ✗ ☐ ☑︎ ☒ ⏎ ⌘ ⌥
° ′ ″ ‴ µ ø ‰ & * # @ ← → ↑ ↓ ↔︎ ↕︎ ⇄ © ™ ®
± − × ÷ · ~ ≠ ≈ ≤ ≥ ½ ½ ¼ ¾ ⅓ ⅔ ∕ ² ³ Δ ∞ ☺ ☹ ❤
$ € ¢ £ ¥ № § † ‡ ⁂ ¶ …
ʃ θ t̬ ʊ ʊ̈ ʌ ʒ ʔ ᵊ ʳ → ‖ ᵗ ˈ ˌ ː æ ɑ ð ə ɚ ɛ ɜ ɝ ɪ ɪ̈ ɫ ŋ ɔ ɒ ɹ ɾ