Population
16-507: United States micropolitan statistical areas ( μSA , where the initial Greek letter mu represents " micro- "), as defined by the Office of Management and Budget (OMB), are labor market and statistical areas in the United States centered on an urban cluster (urban area) with a population of at least 10,000 but fewer than 50,000 people. The micropolitan area designation was created in 2003. Like
32-458: A "real" mu is different than the micro sign. These are only to be used for mathematical text, not for text styling: Micro- Micro ( Greek letter μ , mu , non- italic ) is a unit prefix in the metric system denoting a factor of 10 (one millionth ). It comes from the Greek word μικρός ( mikrós ), meaning "small". It is the only SI prefix which uses a character not from
48-646: A population in excess of 218,000 in 2010; Claremont's population was only 13,355 in that year's census , and Lebanon's population was only 13,151. The following sortable table lists the 538 μSAs of the incorporated United States (the 50 states and the District of Columbia) with the following information: The following sortable table lists the 4 μSAs (USAs) of Puerto Rico with the following information: Mu (letter) Mu ( / ˈ m ( j ) uː / ; uppercase Μ , lowercase μ ; Ancient Greek μῦ [mŷː] , Greek : μι or μυ—both [mi] )
64-506: A series of digital cameras called Olympus μ [mju:] (known as Olympus Stylus in North America). In phonology : In syntax : In Celtic linguistics: The lower-case mu (as "micro sign") appeared at 0xB5 in the 8-bit ISO-8859-1 encoding, from which Unicode and many other encodings inherited it. It was also at 0xE6 in the popular CP437 on the IBM PC. Unicode has declared that
80-556: Is in the Greek range. According to The Unicode Consortium , the Greek letter character is preferred, but implementations must recognize the micro sign as well, for compatibility with legacy character sets . This distinction also occurs in some legacy code pages, notably Windows-1253 . In circumstances in which only the Latin alphabet is available, ISO 2955 (since 1974, withdrawn 2001 ), DIN 66030 (since 1980 ) and BS 6430 (since 1983) allow
96-405: Is not available. The CJK Compatibility block contains square forms of some Japanese katakana measure and currency units. U+3343 ㍃ SQUARE MAIKURO corresponds to マイクロ maikuro . In some health care institutions, house rules deprecate the standard symbol for microgram , "μg", in prescribing or chart recording, because of the risk of giving an incorrect dose because of
112-584: Is not used, because it appears identical to Latin M . "μ" is used as a unit prefix denoting a factor of 10 (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 evolutionary algorithms : In type theory : In chemistry : In biology : In pharmacology : In orbital mechanics : The Olympus Corporation manufactures
128-549: 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. 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 𐤌 (mem). Letters that derive from mu include the Roman M and
144-457: 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 . The lowercase letter mu (μ) is used as a special symbol in many academic fields . Uppercase mu
160-436: The Latin alphabet . In Unicode , the symbol is represented by U+03BC μ GREEK SMALL LETTER MU or the legacy symbol U+00B5 µ MICRO SIGN . The prefix "mc" is commonly used in healthcare or when the character "μ" is not available; for example, "mcg" commonly denotes a microgram. The letter "u" is sometimes used instead of "μ" when non- Latin characters are not available. The official symbol for
176-637: The SI prefix micro is a Greek lowercase mu (μ). For reasons stemming from its design, Unicode has two different character codes for the letter, with slightly different appearance in some fonts, although most fonts use the same glyph . U+00B5 µ MICRO SIGN ( Alt + 0181 ) is in the "Latin-1 Supplement" range identical to ISO/IEC 8859-1 (since 1987), residing at this code point also in DEC MCS (since 1983) and ECMA-94 (since 1985). U+03BC μ GREEK SMALL LETTER MU ( Alt + 956 )
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#1732855160694192-460: The 1990s to describe growing population centers in the United States that are removed from larger cities, in some cases by 100 miles (160 km) or more. Micropolitan cities do not have the economic or political importance of large cities, but are nevertheless significant centers of population and production, drawing workers and shoppers from a wide local area. Because the designation is based on
208-543: The better-known metropolitan statistical areas , a micropolitan area is a geographic entity used for statistical purposes based on counties and county equivalents . On July 21, 2023, the Office of Management and Budget released revised delineations of the various CBSAs in the United States, which recognized 542 micropolitan areas in the United States, four of which are in Puerto Rico . The term "micropolitan" gained currency in
224-501: The core urban cluster's population and not on that of the whole area, some micropolitan areas are much larger than some metropolitan areas. For example, the Ottawa, IL Micropolitan Statistical Area had a 2010 census population of 154,908. That would put its total population ahead of roughly 100 individual locations classified as a metropolitan statistical area in 2010. The largest of the areas, around Claremont and Lebanon, New Hampshire , had
240-496: The misreading of poor handwriting. The two alternatives are to abbreviate as "mcg" or to write out "microgram" in full (see also List of abbreviations used in medical prescriptions ). The alternative abbreviation may be ambiguous in rare circumstances in that mcg could also be read as a micrigram , i.e. 10 g; however the prefix micri is not standard, nor widely known, and is considered obsolete. This deprecation, focused on avoiding incorrect dosing in contexts where handwriting
256-506: The prefix μ to be substituted by the letter u (or even U , if lowercase letters are not available), as, for example, in um for μm , or uF for μF , or in the common abbreviation UC for microcontroller (μC). Similarly, capacitor values according to the RKM code defined in IEC 60062 (since 1952) can be written as 4u7 (or 4U7 ) instead of 4μ7 if the Greek letter μ
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