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Deci-(symbol d) is a decimal unit prefix in the metric system denoting a factor of one tenth. Proposed in 1793, [ 1 ] and adopted in 1795, the prefix comes from the Latin decimus , meaning "tenth". Since 1960, the prefix is part of the International System of Units (SI).
Prefix Symbol Factor Power tera T 1 000 000 000 000: 10 12: giga G 1 000 000 000: 10 9: mega M 1 000 000: 10 6: kilo k 1 000: 10 3: hecto h 100 10 2: deca da 10 10 1 (none) (none) 1 10 0: deci d 0.1 10 −1 ...
10 0: 1 — deci: d: 10 −1: 0.1: 1795 centi: c: 10 −2: 0.01 milli: m: ... arbitrary Unicode codepoints can be entered in decimal with: Alt sustained, 0 1 8 1, and ...
deci d 0.1 10 −1: centi c 0.01 10 −2: milli m 0.001 10 −3: micro u 0.000 001: 10 −6: nano n 0.000 000 001: 10 −9: pico p 0.000 000 000 001: 10 −12: femto ...
A unit prefix is a specifier or mnemonic that is added to the beginning of a unit of measurement to indicate multiples or fractions of the units. Units of various sizes are commonly formed by the use of such prefixes.
Order of magnitude is a concept used to discuss the scale of numbers in relation to one another.. Two numbers are "within an order of magnitude" of each other if their ratio is between 1/10 and 10.
deci d 0.1 10 −1: centi c 0.01 10 −2: milli m 0.001 10 −3: micro μ 0.000 001: 10 −6: nano n 0.000 000 001: 10 −9: pico p 0.000 000 000 001: 10 −12: The ...
Power of ten Engineering notation [citation needed]Short scale (U.S. and modern British) Long scale (continental Europe, archaic British, and India) SI prefix SI symbol