Unicode
Published Aug 18, 2022Updated Aug 17, 2023
Unicode is a text-processing standard that assigns a unique number, known as a code point, to each character across most human languages and writing systems. It is device- and platform-agnostic and is maintained by the Unicode Consortium. The adoption of the Unicode standard has grown so much that it is now implemented in many modern operating systems, programming languages, and it is the default encoding used in XML and HTML.
Common Character Sets
Below are some tables of common Unicode character sets.
Note: These tables only showcase a few characters from each set. More information can be found in the official Unicode character code charts.
Arrows
| Code | Character | Description |
|---|---|---|
| U+2190 | ← | Leftwards arrow |
| U+2191 | ↑ | Upwards arrow |
| U+2192 | → | Rightwards arrow |
| U+2193 | ↓ | Downwards arrow |
Dingbats
| Code | Character | Description |
|---|---|---|
| U+2731 | ✓ | Checkmark |
| U+2729 | ✫ | Star (trace) |
| U+274C | ❌ | Cross mark (red) |
| U+274E | ❎ | Negative squared cross mark (green) |
Math Symbols
| Code | Character | Description |
|---|---|---|
| U+00B1 | ± | Plus-minus sign |
| U+03F4/U+03B8 | ϴ/θ | Theta (capital/lowercase) |
| U+2211 | ∑ | Sigma |
| U+221A | √ | Plus-minus sign |
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