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Twelfth letter of the Greek alphabet From Wikipedia, the free encyclopedia
Mu (/ˈm(j)uː/;[1][2] uppercase Μ, lowercase μ; Ancient Greek μῦ [mŷː], Greek: μι or μυ—both [mi]) is the twelfth letter of the Greek alphabet, representing the voiced bilabial nasal IPA: [m]. In the system of Greek numerals it has a value of 40.[3] Mu was derived from the Egyptian hieroglyphic symbol for water, which had been simplified by the Phoenicians and named after their word for water, to become 𐤌img (mem). Letters that derive from mu include the Roman M and the Cyrillic М, though the lowercase resembles a small Latin U (u).
In Greek, the name of the letter was written μῦ and pronounced [mŷː].
In Modern Greek, the letter is spelled μι and pronounced [mi]. In polytonic orthography, it is written with an acute accent: μί.[4][5]
The lowercase letter mu (μ) is used as a special symbol in many academic fields. Uppercase mu is not used, because it appears identical to Latin M.
"μ" is used as a unit prefix denoting a factor of 10−6 (one millionth), in this context, the symbol's name is "micro".
"μ" is conventionally used to denote certain things; however, any Greek letter or other symbol may be used freely as a variable name.
In classical physics and engineering:
In particle physics:
In thermodynamics:
In type theory:
In chemistry:
In biology:
In pharmacology:
The Olympus Corporation manufactures a series of digital cameras called Olympus μ [mju:][9] (known as Olympus Stylus in North America).
In phonology:
In syntax:
In Celtic linguistics:
Preview | Μ | μ | µ | Ⲙ | ⲙ | |||||
---|---|---|---|---|---|---|---|---|---|---|
Unicode name | GREEK CAPITAL LETTER MU | GREEK SMALL LETTER MU | MICRO SIGN | COPTIC CAPITAL LETTER MI | COPTIC SMALL LETTER MI | |||||
Encodings | decimal | hex | dec | hex | dec | hex | dec | hex | dec | hex |
Unicode | 924 | U+039C | 956 | U+03BC | 181 | U+00B5 | 11416 | U+2C98 | 11417 | U+2C99 |
UTF-8 | 206 156 | CE 9C | 206 188 | CE BC | 194 181 | C2 B5 | 226 178 152 | E2 B2 98 | 226 178 153 | E2 B2 99 |
Numeric character reference | Μ | Μ | μ | μ | µ | µ | Ⲙ | Ⲙ | ⲙ | ⲙ |
Named character reference | Μ | μ | µ | |||||||
ISO/IEC 8859-1 | 181 | B5 | ||||||||
ISO/IEC 8859-7 | 204 | CC | 236 | EC | ||||||
Code page 437, 850 | 230 | E6 | 230 | E6 | ||||||
Code page 737 | 139 | 8B | 163 | A3 | ||||||
Code page 851, 869 | 183 | B7 | 230 | E6 | ||||||
Code page 1253 | 204 | CC | 236 | EC | ||||||
Roman-8, Roman-9 | 243 | F3 | 243 | F3 | ||||||
TeX | \mu | \micro |
Preview | 𝚳 | 𝛍 | 𝛭 | 𝜇 | 𝜧 | 𝝁 | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Unicode name | MATHEMATICAL BOLD CAPITAL MU |
MATHEMATICAL BOLD SMALL MU |
MATHEMATICAL ITALIC CAPITAL MU |
MATHEMATICAL ITALIC SMALL MU |
MATHEMATICAL BOLD ITALIC CAPITAL MU |
MATHEMATICAL BOLD ITALIC SMALL MU | ||||||
Encodings | decimal | hex | dec | hex | dec | hex | dec | hex | dec | hex | dec | hex |
Unicode | 120499 | U+1D6B3 | 120525 | U+1D6CD | 120557 | U+1D6ED | 120583 | U+1D707 | 120615 | U+1D727 | 120641 | U+1D741 |
UTF-8 | 240 157 154 179 | F0 9D 9A B3 | 240 157 155 141 | F0 9D 9B 8D | 240 157 155 173 | F0 9D 9B AD | 240 157 156 135 | F0 9D 9C 87 | 240 157 156 167 | F0 9D 9C A7 | 240 157 157 129 | F0 9D 9D 81 |
UTF-16 | 55349 57011 | D835 DEB3 | 55349 57037 | D835 DECD | 55349 57069 | D835 DEED | 55349 57095 | D835 DF07 | 55349 57127 | D835 DF27 | 55349 57153 | D835 DF41 |
Numeric character reference | 𝚳 | 𝚳 | 𝛍 | 𝛍 | 𝛭 | 𝛭 | 𝜇 | 𝜇 | 𝜧 | 𝜧 | 𝝁 | 𝝁 |
Preview | 𝝡 | 𝝻 | 𝞛 | 𝞵 | ||||
---|---|---|---|---|---|---|---|---|
Unicode name | MATHEMATICAL SANS-SERIF BOLD CAPITAL MU |
MATHEMATICAL SANS-SERIF BOLD SMALL MU |
MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL MU |
MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL MU | ||||
Encodings | decimal | hex | dec | hex | dec | hex | dec | hex |
Unicode | 120673 | U+1D761 | 120699 | U+1D77B | 120731 | U+1D79B | 120757 | U+1D7B5 |
UTF-8 | 240 157 157 161 | F0 9D 9D A1 | 240 157 157 187 | F0 9D 9D BB | 240 157 158 155 | F0 9D 9E 9B | 240 157 158 181 | F0 9D 9E B5 |
UTF-16 | 55349 57185 | D835 DF61 | 55349 57211 | D835 DF7B | 55349 57243 | D835 DF9B | 55349 57269 | D835 DFB5 |
Numeric character reference | 𝝡 | 𝝡 | 𝝻 | 𝝻 | 𝞛 | 𝞛 | 𝞵 | 𝞵 |
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