There are a lot of useful characters in the extended Unicode character sets, covering both foreign languages and a large number of useful symbols. The following are some of the special characters used in documents on this site. All the Unicode characters can be looked up here: https://www.compart.com/en/unicode/
| Name |
Character |
Codepoint |
| Cubed (^3) |
³ |
U+00B3 |
| Double-Chevron (Left) |
« |
U+00AB |
| Double-Chevron (Right) |
» |
U+00BB |
| Double-Square-bracket (Left) |
〚 |
U+301A |
| Double-Square-bracket (Right) |
〛 |
U+301B |
| Ellipsis / Ellipses |
… |
U+2026 |
| Omega (Ohms) |
Ω |
U+03A9 |
| One-eighth (1/8) |
⅛ |
U+215B |
| One-half (1/2) |
½ |
U+00BD |
| One-quarter (1/4) |
¼ |
U+00BC |
| Squared (^2) |
² |
U+00B2 |
| Three-eighths (3/8) |
⅜ |
U+215C |
| Three-quarters (3/4) |
¾ |
U+00BE |
| Name |
Character |
Codepoint |
| Less Than or Equal |
≦ |
U+2266 |
| Greater Than or Equal |
≧ |
U+2267 |
| Approximately Less Than |
≲ |
U+2272 |
| Approximately Greater Than |
≳ |
U+2273 |
| Approximately Less than or Equal |
⪅ |
U+2A85 |
| Approximately Greater than or Equal |
⪆ |
U+2A86 |
| Left Right Double Arrow |
⇔ |
U+21D4 |
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