Documentation Reference Number: #0009
Hypertext Markup Language Entities
I. Mathematical Symbols
Description
Below are some mathematical symbols which you may insert into HTML webpages by using the appropriate HTML entity number or HTML entity name.
| Character | Number | Entity | Description |
|---|---|---|---|
| ∀ | ∀ | ∀ | For all |
| ∂ | ∂ | ∂ | Part |
| ∃ | ∃ | ∃ | There exists |
| ∅ | ∅ | ∅ | Empty set |
| ∇ | ∇ | ∇ | Nabla |
| ∈ | ∈ | ∈ | Is In |
| ∉ | ∉ | ∉ | Not In |
| ∋ | ∋ | ∋ | Ni |
| ∏ | ∏ | ∏ | Product |
| ∑ | ∑ | ∑ | Sum |
| − | − | − | Minus |
| ∗ | ∗ | ∗ | Asterisk (lowast) |
| √ | √ | √ | Square root |
| ∝ | ∝ | ∝ | Proportional to |
| ∞ | ∞ | ∞ | Infinity |
| ∠ | ∠ | ∠ | Angle |
| ∧ | ∧ | ∧ | And |
| ∨ | ∨ | ∨ | Or |
| ∩ | ∩ | ∩ | Cap |
| ∪ | ∪ | ∪ | Cup |
| ∫ | ∫ | ∫ | Integral |
| ∴ | ∴ | ∴ | Therefore |
| ∼ | ∼ | ∼ | Similar to |
| ≅ | ≅ | ≅ | Congurent to |
| ≈ | ≈ | ≈ | Almost equal |
| ≠ | ≠ | ≠ | Not equal |
| ≡ | ≡ | ≡ | Equivalent |
| ≤ | ≤ | ≤ | Less or equal |
| ≥ | ≥ | ≥ | Greater or equal |
| ⊂ | ⊂ | ⊂ | Subset of |
| ⊃ | ⊃ | ⊃ | Superset of |
| ⊄ | ⊄ | ⊄ | Not subset of |
| ⊆ | ⊆ | ⊆ | Subset or equal |
| ⊇ | ⊇ | ⊇ | Superset or equal |
| ⊕ | ⊕ | ⊕ | Circled plus |
| ⊗ | ⊗ | ⊗ | Circled times |
| ⊥ | ⊥ | ⊥ | Perpendicular |
| ⋅ | ⋅ | ⋅ | Dot operator |
II. Miscellaneous Symbols
Description
The html entities which do not clearly belong in a different category are listed below.
| Character | Number | Entity | Description |
|---|---|---|---|
| Π| Π| Π| Uppercase ligature OE |
| œ | œ | œ | Lowercase ligature OE |
| Š | Š | Š | Uppercase S with caron |
| š | š | š | Lowercase S with caron |
| Ÿ | Ÿ | Ÿ | Capital Y with diaeres |
| ƒ | ƒ | ƒ | Lowercase with hook |
| ˆ | ˆ | ˆ | Circumflex accent |
| ˜ | ˜ | ˜ | Tilde |
|   |   | En space | |
|   |   | Em space | |
|   |   | Thin space | |
| | ‌ | ‌ | Zero width non-joiner |
| | ‍ | ‍ | Zero width joiner |
| | ‎ | ‎ | Left-to-right mark |
| | ‏ | ‏ | Right-to-left mark |
| – | – | – | En dash |
| — | — | — | Em dash |
| ‘ | ‘ | ‘ | Left single quotation mark |
| ’ | ’ | ’ | Right single quotation mark |
| ‚ | ‚ | ‚ | Single low-9 quotation mark |
| “ | “ | “ | Left double quotation mark |
| ” | ” | ” | Right double quotation mark |
| „ | „ | „ | Double low-9 quotation mark |
| † | † | † | Dagger |
| ‡ | ‡ | ‡ | Double dagger |
| • | • | • | Bullet |
| … | … | … | Horizontal ellipsis |
| ‰ | ‰ | ‰ | Per mile |
| ′ | ′ | ′ | Minutes (Degrees) |
| ″ | ″ | ″ | Seconds (Degrees) |
| ‹ | ‹ | ‹ | Single left angle quotation |
| › | › | › | Singe right angle quotation |
| ‾ | ‾ | ‾ | Overline |
| € | € | € | Euro |
| ™ | ™ | ™ | Trademark symbol |
| ← | ← | ← | Left arrow |
| ↑ | ↑ | ↑ | Up arrow |
| → | → | → | Right arrow |
| ↓ | ↓ | ↓ | Down arrow |
| ↔ | ↔ | ↔ | Left right arrow |
| ↵ | ↵ | ↵ | Carriage return arrow |
| ⌈ | ⌈ | ⌈ | Left ceiling |
| ⌈ | ⌈ | ⌉ | Right ceiling |
| ⌊ | ⌊ | ⌊ | Left floor |
| ⌋ | ⌋ | ⌋ | Right floor |
| ◊ | ◊ | ◊ | Lozenge |
| ♠ | ♠ | ♠ | Spade |
| ♣ | ♣ | ♣ | Club |
| ♥ | ♥ | ♥ | Heart |
| ♦ | ♦ | ♦ | Diamond |