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prefix. The name of the prefix, which is prepended directly before a unit name with no spaces. For instance, prepending the prefix mega to the SI unit joule gives the word megajoule. symbol. The symbol of the prefix, to be used in conjunction with the symbol for a unit, following the rules above.
Below are shown the prefixes (factors) used with units in physics, chemistry and engineering. The symbol, the name, the corresponding factor as well as an example for each prefix are presented.
13 sty 2010 · Eight original SI prefixes were officially adopted: deca, hecto, kilo, myria, deci, centi, milli, and myrio, derived from Greek and Latin numbers. Initially, all prefixes were represented by lowercase symbols.
In the English language, prefixes are letters which are placed in front of words to make new words. Some of the Greek prefixes and their symbols to indicate decimal sub-multiples and multiples of the SI units are:
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A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or submultiple of the unit. All metric prefixes used today are decadic. Each prefix has a unique symbol that is prepended to any unit symbol.
The Greek letter forms used in mathematics are often different from those used in Greek-language text: they are designed to be used in isolation, not connected to other letters, and some use variant forms which are not normally used in current Greek typography.
