Mathematical Operators (Unicode block)

Mathematical Operators is a Unicode block containing characters for mathematical, logical, and set notation.

Notably absent are the plus sign ($+$), greater than sign ($>$), equals sign ($=$), and less than sign ($<$), due to them already appearing in the Basic Latin Unicode block, and the plus-or-minus sign ($\pm$), multiplication sign ($\times$) and division sign ($÷$), 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 (-).

Variation sequences

The Mathematical Operators block has sixteen variation sequences defined for standardized variants. They use Template:Sc2 (VS01) to denote variant symbols (depending on the font):

Variation sequences

Base character	Base	+VS01	Description
U+2205 EMPTY SET	Template:Large	Template:Large	zero with long diagonal stroke overlay form
U+2229 INTERSECTION	Template:Large	Template:Large	with serifs
U+222A UNION	Template:Large	Template:Large	with serifs
U+2268 LESS-THAN BUT NOT EQUAL TO	Template:Large	Template:Large	with vertical stroke
U+2269 GREATER-THAN BUT NOT EQUAL TO	Template:Large	Template:Large	with vertical stroke
U+2272 LESS-THAN OR EQUIVALENT TO	Template:Large	Template:Large	following the slant of the lower leg
U+2273 GREATER-THAN OR EQUIVALENT TO	Template:Large	Template:Large	following the slant of the lower leg
U+228A SUBSET OF WITH NOT EQUAL TO	Template:Large	Template:Large	with stroke through bottom members
U+228B SUPERSET OF WITH NOT EQUAL TO	Template:Large	Template:Large	with stroke through bottom members
U+2293 SQUARE CAP	Template:Large	Template:Large	with serifs
U+2294 SQUARE CUP	Template:Large	Template:Large	with serifs
U+2295 CIRCLED PLUS	Template:Large	Template:Large	with white rim
U+2297 CIRCLED TIMES	Template:Large	Template:Large	with white rim
U+229C CIRCLED EQUALS	Template:Large	Template:Large	with equal sign touching the circle
U+22DA LESS-THAN EQUAL TO OR GREATER-THAN	Template:Large	Template:Large	with slanted equal
U+22DB GREATER-THAN EQUAL TO OR LESS-THAN	Template:Large	Template:Large	with slanted equal

History

The following Unicode-related documents record the purpose and process of defining specific characters in the Mathematical Operators block:

Version	Template:Nobr	Count	UTC ID	L2 ID	WG2 ID	Document
1.0.0	U+2200..22F1	242				(to be determined)
			Template:Nobr			Template:Citation
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				Template:Nobr	Template:Nobr doc)	Template:Citation
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3.2	U+22F2..22FF	14		Template:Nobr	N2191R	Template:Citation
				Template:Nobr	Template:Nobr txt)	Template:Citation
				Template:Nobr		Template:Citation
Template:Reflist

See also

• Mathematical operators and symbols in Unicode
• Supplemental Mathematical Operators