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package org.checkerframework.checker.units.qual;
/**
* SI prefixes.
*
* From http://en.wikipedia.org/wiki/SI_prefix:
*
*
* yotta Y 1000^8 10^24 1000000000000000000000000 Septillion Quadrillion 1991
* zetta Z 1000^7 10^21 1000000000000000000000 Sextillion Trilliard 1991
* exa E 1000^6 10^18 1000000000000000000 Quintillion Trillion 1975
* peta P 1000^5 10^15 1000000000000000 Quadrillion Billiard 1975
* tera T 1000^4 10^12 1000000000000 Trillion Billion 1960
* giga G 1000^3 10^9 1000000000 Billion Milliard 1960
* mega M 1000^2 10^6 1000000 Million 1960
* kilo k 1000^1 10^3 1000 Thousand 1795
* hecto h 1000^2/3 10^2 100 Hundred 1795
* deca da 1000^1/3 10^1 10 Ten 1795
* 1000^0 10^0 1 One
* deci d 1000^-1/3 10^-1 0.1 Tenth 1795
* centi c 1000^-2/3 10^-2 0.01 Hundredth 1795
* milli m 1000^-1 10^-3 0.001 Thousandth 1795
* micro my 1000^-2 10^-6 0.000001 Millionth 1960
* nano n 1000^-3 10^-9 0.000000001 Billionth Milliardth 1960
* pico p 1000^-4 10^-12 0.000000000001 Trillionth Billionth 1960
* femto f 1000^-5 10^-15 0.000000000000001 Quadrillionth Billiardth 1964
* atto a 1000^-6 10^-18 0.000000000000000001 Quintillionth Trillionth 1964
* zepto z 1000^-7 10^-21 0.000000000000000000001 Sextillionth Trilliardth 1991
* yocto y 1000^-8 10^-24 0.000000000000000000000001 Septillionth Quadrillionth 1991
*
*
* @checker_framework.manual #units-checker Units Checker
*/
public enum Prefix {
/** SI prefix for 10^24. */
yotta,
/** SI prefix for 10^21. */
zetta,
/** SI prefix for 10^18. */
exa,
/** SI prefix for 10^15. */
peta,
/** SI prefix for 10^12. */
tera,
/** SI prefix for 10^9. */
giga,
/** SI prefix for 10^6. */
mega,
/** SI prefix for 10^3. */
kilo,
/** SI prefix for 10^2. */
hecto,
/** SI prefix for 10^1. */
deca,
/** SI prefix for 10^0, or 1. */
one,
/** SI prefix for 10^-1. */
deci,
/** SI prefix for 10^-2. */
centi,
/** SI prefix for 10^-3. */
milli,
/** SI prefix for 10^-6. */
micro,
/** SI prefix for 10^-9. */
nano,
/** SI prefix for 10^-12. */
pico,
/** SI prefix for 10^-15. */
femto,
/** SI prefix for 10^-18. */
atto,
/** SI prefix for 10^-21. */
zepto,
/** SI prefix for 10^-24. */
yocto
}