| Blockname: | Mathematical Operators |
| Rangestart: | 2200 |
| Rangeend: | 22FF |
| Script1: | Common |
| Symbols: | Mathematical symbols Logic and Set operators Relation symbols |
| 1 0 0: | 242 |
| 3 2: | 14 |
| Note: | [1] [2] |
Mathematical Operators is a Unicode block containing characters for mathematical, logical, and set notation.
Notably absent are the plus sign (+), greater than sign (>) and less than sign (<), due to them already appearing in the Basic Latin Unicode block, and the plus-or-minus sign (±), multiplication sign (×) and obelus (÷), due to them already appearing in the Latin-1 Supplement block, although a distinct minus sign (-) is included, semantically different from the Basic Latin hyphen-minus (-).
The Mathematical Operators block has sixteen variation sequences defined for standardized variants.[3] They use (VS01) to denote variant symbols (depending on the font):
| Base character | Base | +VS01 | Description | |
|---|---|---|---|---|
| U+2205 EMPTY SET | zero with long diagonal stroke overlay form | |||
| U+2229 INTERSECTION | with serifs | |||
| U+222A UNION | with serifs | |||
| U+2268 LESS-THAN BUT NOT EQUAL TO | with vertical stroke | |||
| U+2269 GREATER-THAN BUT NOT EQUAL TO | with vertical stroke | |||
| U+2272 LESS-THAN OR EQUIVALENT TO | following the slant of the lower leg | |||
| U+2273 GREATER-THAN OR EQUIVALENT TO | following the slant of the lower leg | |||
| U+228A SUBSET OF WITH NOT EQUAL TO | with stroke through bottom members | |||
| U+228B SUPERSET OF WITH NOT EQUAL TO | with stroke through bottom members | |||
| U+2293 SQUARE CAP | with serifs | |||
| U+2294 SQUARE CUP | with serifs | |||
| U+2295 CIRCLED PLUS | with white rim | |||
| U+2297 CIRCLED TIMES | with white rim | |||
| U+229C CIRCLED EQUALS | with equal sign touching the circle | |||
| U+22DA LESS-THAN EQUAL TO OR GREATER-THAN | with slanted equal | |||
| U+22DB GREATER-THAN EQUAL TO OR LESS-THAN | with slanted equal |
The following Unicode-related documents record the purpose and process of defining specific characters in the Mathematical Operators block:
| Count | UTC ID | L2 ID | WG2 ID | Document | |||
|---|---|---|---|---|---|---|---|
| 1.0.0 | U+2200..22F1 | 242 | (to be determined) | ||||
| doc) | |||||||
| 3.2 | U+22F2..22FF | 14 | N2191R | ||||
| txt) | |||||||