Mathematical Operators (Unicode block)

Last updated
Mathematical Operators
RangeU+2200..U+22FF
(256 code points)
Plane BMP
Scripts Common
Symbol setsMathematical symbols
Logic and Set operators
Relation symbols
Assigned256 code points
Unused0 reserved code points
Unicode version history
1.0.0 (1991)242 (+242)
3.2 (2002)256 (+14)
Unicode documentation
Code chart ∣ Web page
Note: [1] [2]

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

Contents

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 (-).

Block

Mathematical Operators [1]
Official Unicode Consortium code chart (PDF)
 0123456789ABCDEF
U+220x ∀ ∁ ∂ ∃ ∄ ∅ ∆ ∇ ∈ ∉ ∊ ∋ ∌ ∍ ∎ ∏
U+221x ∐ ∑ − ∓ ∔ ∕ ∖ ∗ ∘ ∙ √ ∛ ∜ ∝ ∞ ∟
U+222x ∠ ∡ ∢ ∣ ∤ ∥ ∦ ∧ ∨ ∩ ∪ ∫ ∬ ∭ ∮ ∯
U+223x ∰ ∱ ∲ ∳ ∴ ∵ ∶ ∷ ∸ ∹ ∺ ∻ ∼ ∽ ∾ ∿
U+224x ≀ ≁ ≂ ≃ ≄ ≅ ≆ ≇ ≈ ≉ ≊ ≋ ≌ ≍ ≎ ≏
U+225x ≐ ≑ ≒ ≓ ≔ ≕ ≖ ≗ ≘ ≙ ≚ ≛ ≜ ≝ ≞ ≟
U+226x ≠ ≡ ≢ ≣ ≤ ≥ ≦ ≧ ≨ ≩ ≪ ≫ ≬ ≭ ≮ ≯
U+227x ≰ ≱ ≲ ≳ ≴ ≵ ≶ ≷ ≸ ≹ ≺ ≻ ≼ ≽ ≾ ≿
U+228x ⊀ ⊁ ⊂ ⊃ ⊄ ⊅ ⊆ ⊇ ⊈ ⊉ ⊊ ⊋ ⊌ ⊍ ⊎ ⊏
U+229x ⊐ ⊑ ⊒ ⊓ ⊔ ⊕ ⊖ ⊗ ⊘ ⊙ ⊚ ⊛ ⊜ ⊝ ⊞ ⊟
U+22Ax ⊠ ⊡ ⊢ ⊣ ⊤ ⊥ ⊦ ⊧ ⊨ ⊩ ⊪ ⊫ ⊬ ⊭ ⊮ ⊯
U+22Bx ⊰ ⊱ ⊲ ⊳ ⊴ ⊵ ⊶ ⊷ ⊸ ⊹ ⊺ ⊻ ⊼ ⊽ ⊾ ⊿
U+22Cx ⋀ ⋁ ⋂ ⋃ ⋄ ⋅ ⋆ ⋇ ⋈ ⋉ ⋊ ⋋ ⋌ ⋍ ⋎ ⋏
U+22Dx ⋐ ⋑ ⋒ ⋓ ⋔ ⋕ ⋖ ⋗ ⋘ ⋙ ⋚ ⋛ ⋜ ⋝ ⋞ ⋟
U+22Ex ⋠ ⋡ ⋢ ⋣ ⋤ ⋥ ⋦ ⋧ ⋨ ⋩ ⋪ ⋫ ⋬ ⋭ ⋮ ⋯
U+22Fx ⋰ ⋱ ⋲ ⋳ ⋴ ⋵ ⋶ ⋷ ⋸ ⋹ ⋺ ⋻ ⋼ ⋽ ⋾ ⋿
Notes
1. ^ As of Unicode version 16.0

Variation sequences

The Mathematical Operators block has sixteen variation sequences defined for standardized variants. [3] [4] They use U+FE00 VARIATION SELECTOR-1 (VS01) to denote variant symbols (depending on the font):

Variation sequences
Base characterBase+VS01Description
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

History

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

See also

References

  1. ↑ "Unicode character database". The Unicode Standard. Retrieved 2023-07-26.
  2. ↑ "Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2023-07-26.
  3. ↑ "Unicode Character Database: Standardized Variation Sequences". The Unicode Consortium.
  4. ↑ Whistler, Ken; Freytag, Asmus (2000-04-19), "Symbol variants defined using a Variation Selector", L2/00-119: Encoding Additional Mathematical Symbols in Unicode (PDF)
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