Home: go to the homepage U+2200 to U+22FF Mathematical Operators
Glyph for U+22C5
Source: Noto Sans Symbols2

U+22C5 Dot Operator

U+22C5 was added to Unicode in version 1.1 (1993). It belongs to the block U+2200 to U+22FF Mathematical Operators in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Math Symbol and is commonly used, that is, in no specific script.

The glyph is not a composition. It has a Neutral East Asian Width. In bidirectional context it acts as Other Neutral and is not mirrored. The glyph can, under circumstances, be confused with 1 other glyphs. In text U+22C5 behaves as Alphabetic regarding line breaks. It has type Other for sentence and Other for word breaks. The Grapheme Cluster Break is Any.

The CLDR project labels this character “dot operator” for use in screen reading software. It assigns additional tags, e.g. for search in emoji pickers: operator.

The Wikipedia has the following information about this codepoint:

Multiplication (often denoted by the cross symbol ×, by the mid-line dot operator , by juxtaposition, or, on computers, by an asterisk *) is one of the four elementary mathematical operations of arithmetic, with the other ones being addition, subtraction, and division. The result of a multiplication operation is called a product.

The multiplication of whole numbers may be thought of as repeated addition; that is, the multiplication of two numbers is equivalent to adding as many copies of one of them, the multiplicand, as the quantity of the other one, the multiplier; both numbers can be referred to as factors.

a × b = b + ⋯ + b ⏟ a  times {displaystyle a imes b=underbrace {b+cdots +b} _{a{ ext{ times}}}}

For example, 4 multiplied by 3, often written as 3 × 4 {displaystyle 3 imes 4} and spoken as "3 times 4", can be calculated by adding 3 copies of 4 together:

3 × 4 = 4 + 4 + 4 = 12 {displaystyle 3 imes 4=4+4+4=12}

Here, 3 (the multiplier) and 4 (the multiplicand) are the factors, and 12 is the product.

One of the main properties of multiplication is the commutative property, which states in this case that adding 3 copies of 4 gives the same result as adding 4 copies of 3:

4 × 3 = 3 + 3 + 3 + 3 = 12 {displaystyle 4 imes 3=3+3+3+3=12}

Thus the designation of multiplier and multiplicand does not affect the result of the multiplication.

Systematic generalizations of this basic definition define the multiplication of integers (including negative numbers), rational numbers (fractions), and real numbers.

Multiplication can also be visualized as counting objects arranged in a rectangle (for whole numbers) or as finding the area of a rectangle whose sides have some given lengths. The area of a rectangle does not depend on which side is measured first—a consequence of the commutative property.

The product of two measurements (or physical quantities) or is a new type of measurement, usually with a derived unit. For example, multiplying the lengths (in meters or feet) of the two sides of a rectangle gives its area (in square meters or square feet). Such a product is the subject of dimensional analysis.

The inverse operation of multiplication is division. For example, since 4 multiplied by 3 equals 12, 12 divided by 3 equals 4. Indeed, multiplication by 3, followed by division by 3, yields the original number. The division of a number other than 0 by itself equals 1.

Multiplication is also defined for other types of numbers, such as complex numbers, and for more abstract constructs, like matrices. For some of these more abstract constructs, the order in which the operands are multiplied together matters. A listing of the many different kinds of products used in mathematics is given in Product (mathematics).

Representations

System Representation
8901
UTF-8 E2 8B 85
UTF-16 22 C5
UTF-32 00 00 22 C5
URL-Quoted %E2%8B%85
HTML hex reference ⋅
Wrong windows-1252 Mojibake â‹…
HTML named entity ⋅
LATEX \cdot
Adobe Glyph List dotmath
digraph .P

Related Characters

Confusables

Elsewhere

Complete Record

Property Value
Age 1.1 (1993)
Unicode Name DOT OPERATOR
Unicode 1 Name
Block Mathematical Operators
General Category Math Symbol
Script Common
Bidirectional Category Other Neutral
Combining Class Not Reordered
Decomposition Type None
Decomposition Mapping Glyph for U+22C5 Dot Operator
Lowercase
Simple Lowercase Mapping Glyph for U+22C5 Dot Operator
Lowercase Mapping Glyph for U+22C5 Dot Operator
Uppercase
Simple Uppercase Mapping Glyph for U+22C5 Dot Operator
Uppercase Mapping Glyph for U+22C5 Dot Operator
Simple Titlecase Mapping Glyph for U+22C5 Dot Operator
Titlecase Mapping Glyph for U+22C5 Dot Operator
Case Folding Glyph for U+22C5 Dot Operator
ASCII Hex Digit
Alphabetic
Bidi Control
Bidi Mirrored
Composition Exclusion
Case Ignorable
Changes When Casefolded
Changes When Casemapped
Changes When NFKC Casefolded
Changes When Lowercased
Changes When Titlecased
Changes When Uppercased
Cased
Full Composition Exclusion
Default Ignorable Code Point
Dash
Deprecated
Diacritic
Emoji Modifier Base
Emoji Component
Emoji Modifier
Emoji Presentation
Emoji
Extender
Extended Pictographic
FC NFKC Closure Glyph for U+22C5 Dot Operator
Grapheme Cluster Break Any
Grapheme Base
Grapheme Extend
Grapheme Link
Hex Digit
Hyphen
ID Continue
ID Start
IDS Binary Operator
IDS Trinary Operator and
IDSU 0
ID_Compat_Math_Continue 0
ID_Compat_Math_Start 0
Ideographic
InCB None
Indic Mantra Category
Indic Positional Category NA
Indic Syllabic Category Other
Jamo Short Name
Join Control
Logical Order Exception
Math
Noncharacter Code Point
NFC Quick Check Yes
NFD Quick Check Yes
NFKC Casefold Glyph for U+22C5 Dot Operator
NFKC Quick Check Yes
NFKC_SCF Glyph for U+22C5 Dot Operator
NFKD Quick Check Yes
Other Alphabetic
Other Default Ignorable Code Point
Other Grapheme Extend
Other ID Continue
Other ID Start
Other Lowercase
Other Math
Other Uppercase
Prepended Concatenation Mark
Pattern Syntax
Pattern White Space
Quotation Mark
Regional Indicator
Radical
Sentence Break Other
Soft Dotted
Sentence Terminal
Terminal Punctuation
Unified Ideograph
Variation Selector
Word Break Other
White Space
XID Continue
XID Start
Expands On NFC
Expands On NFD
Expands On NFKC
Expands On NFKD
Bidi Paired Bracket Glyph for U+22C5 Dot Operator
Bidi Paired Bracket Type None
East Asian Width Neutral
Hangul Syllable Type Not Applicable
ISO 10646 Comment
Joining Group No_Joining_Group
Joining Type Non Joining
Line Break Alphabetic
Numeric Type None
Numeric Value not a number
Simple Case Folding Glyph for U+22C5 Dot Operator
Script Extension
Vertical Orientation R