For the symbols that are not present on a normal keyboard, HTML entity names can be used to add them to an HTML page. In case of the absence of an entity name or otherwise, also, an entity number, a decimal, or hexadecimal reference can be used for such symbols.
Example:
<!DOCTYPE html> <html> <body> <p>Cent: ¢</p> <p>Pound: £</p> <p>Yen: ¥</p> <p>Euro: €</p> </body> </html>
Explanation:
In the above example, we are displaying the different currency symbols using their entity numbers.
Mathematical Symbols Supported by HTML:
Some of the mathematical symbols supported by HTML are:
| Char | Number | Entity | Description |
| ∀ | ∀ | ∀ | FOR ALL |
| ∂ | ∂ | ∂ | PARTIAL DIFFERENTIAL |
| ∃ | ∃ | ∃ | THERE EXISTS |
| ∅ | ∅ | ∅ | EMPTY SETS |
| ∇ | ∇ | ∇ | NABLA |
| ∈ | ∈ | ∈ | ELEMENT OF |
| ∉ | ∉ | ∉ | NOT AN ELEMENT OF |
| ∋ | ∋ | ∋ | CONTAINS AS MEMBER |
| ∏ | ∏ | ∏ | N-ARY PRODUCT |
| ∑ | ∑ | ∑ | N-ARY SUMMATION |
Greek Letters Supported by HTML:
Some of the Greek letters supported by HTML are:
| Char | Number | Entity | Description |
| Α | Α | Α | GREEK CAPITAL LETTER ALPHA |
| Β | Β | Β | GREEK CAPITAL LETTER BETA |
| Γ | Γ | Γ | GREEK CAPITAL LETTER GAMMA |
| Δ | Δ | Δ | GREEK CAPITAL LETTER DELTA |
| Ε | Ε | Ε | GREEK CAPITAL LETTER EPSILON |
| Ζ | Ζ | Ζ | GREEK CAPITAL LETTER ZETA |
Other Entities Supported by HTML:
Some of the important entities supported by HTML are:
| Char | Number | Entity | Description |
| © | © | © | COPYRIGHT SIGN |
| ® | ® | ® | REGISTERED SIGN |
| € | € | € | EURO SIGN |
| ™ | ™ | ™ | TRADEMARK |
| ← | ← | ← | LEFTWARDS ARROW |
| ↑ | ↑ | ↑ | UPWARDS ARROW |
| → | → | → | RIGHTWARDS ARROW |
| ↓ | ↓ | ↓ | DOWNWARDS ARROW |
| ♠ | ♠ | ♠ | BLACK SPADE SUIT |
| ♣ | ♣ | ♣ | BLACK CLUB SUIT |
| ♥ | ♥ | ♥ | BLACK HEART SUIT |
| ♦ | ♦ | ♦ | BLACK DIAMOND SUIT |