HTML Symbols
We have discussed HTML Entities in the previous page. Many Mathematical symbols, currency symbols, Greek letters are not present on the keyboard, they can be displayed on the web-pages using either entity name or entity number.
Common Mathematical Operators
| Result (Char) | Entity | Names |
|---|---|---|
| ∀ | ∀ | FOR ALL |
| ∂ | ∂ | PARTIAL DIFFERENCE |
| ∃ | ∃ | THERE EXISTS |
| ∅ | ∅ | EMPTY SET |
| ∇ | ∇ | NABLA |
| ∈ | ∈ | ELEMENT OF |
| ∉ | ∉ | NOT AN ELEMENT OF |
| ∑ | ∑ | N-ARY SUMMATION |
| ∗ | ∗ | ASTERISK OPERATOR |
| √ | √ | SQUARE ROOT |
| ∝ | ∝ | PROPORTIONAL TO |
| ∠ | ∠ | ANGLE |
| ∞ | ∞ | INFINITY |
| ∧ | ∧ | LOGICAL AND |
| ∨ | ∨ | LOGICAL OR |
| ∩ | ∩ | INTERSECTION |
| ∪ | ∪ | UNION |
| ∫ | ∫ | INTEGRAL |
Many Mathematics operators do not have HTML entity, they have to be replaced either by decimal (dec) or hexadecimal (hex) references.
Some examples are listed below
| Result (Char) | Entity Number (Dec) | Entity Number (Hex) | Names |
|---|---|---|---|
| ∀ | ∀ | ∀ | FOR ALL |
| ∁ | ∁ | ∁ | COMPLEMENT |
| ∄ | ∄ | ∄ | THERE DOES NOT EXIST |
| ∆ | ∆ | ∆ | INCREMENT |
| ∈ | ∈ | ∈ | ELEMENT OF |
| ∌ | ∌ | ∌ | DOES NOT CONTAIN AS MEMBER |
| ∍ | ∍ | ∍ | CONTAINS AS MEMBER |
| ∎ | ∎ | ∎ | END OF PROOF |
| ∓ | ∓ | ∓ | MINUS-PLUS SIGN |
| ∔ | ∔ | ∔ | DOT PLUS |
| ∕ | ∕ | ∕ | DIVISION SLASH |
| ∖ | ∖ | ∖ | SET MINUS |
| ∙ | ∙ | ∙ | BULLET OPERATOR |
| ∛ | ∛ | ∛ | CUBE ROOT |
| ∜ | ∜ | ∜ | FOURTH ROOT |
More entities
| Result (Char) | Entity | Number | Notes |
|---|---|---|---|
| © | © | © | COPYRIGHT SIGN |
| ® | ® | ® | REGISTERED SIGN |
| ™ | ™ | ™ | TRADEMARK |
| ← | ← | ← | LEFTWARDS ARROW |
| ↑ | ↑ | ↑ | UPWARDS ARROW |
| → | → | → | RIGHTWARDS ARROW |
| ↓ | ↓ | ↓ | DOWNWARDS ARROW |
Many more entities are supported in HTML5. But we are not covering all of them here.
Click here to learn all the HTML Symbols, Characters and Entities.