There are various symbols (€, ©, ®, etc) that are not present on our keyboard. We use HTML entities to render these symbols on a web browser. For example, 
<p>copyright sign ©</p>
Browser Output
	Here, we have added the copyright sign using the entity code ©.
Some symbols supported by HTML
We use entity name and entity number to render symbols using HTML. Some of the mathematical, greek, etc symbols supported by HTML are as follows:
| Char | Number | Entity | Name | 
|---|---|---|---|
| ∀ | ∀ | 
∀ | 
FOR ALL | 
| ∂ | ∂ | 
∂ | 
PARTIAL | 
| ∃ | ∃ | 
∃ | 
THERE EXIST | 
| ∅ | ∅ | 
∅ | 
EMPTY SETS | 
| ∇ | ∇ | 
∇ | 
NABLA | 
| ∈ | ∈ | 
∈ | 
IS IN | 
| ∉ | ∉ | 
∉ | 
NOT IN | 
| ∋ | ∋ | 
∋ | 
CONTAINS | 
| ∏ | ∏ | 
∏ | 
PRODUCT | 
| ∑ | ∑ | 
∑ | 
SUM | 
| 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 | 
| © | © | 
© | 
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 | 
Note: We can use either the entity number or the entity code to display the symbol.