SI class abstract

Contains SI (Système International d'Unités) base units, and derived units.

It also defines the 20 SI prefixes used to form decimal multiples and submultiples of SI units.

Inheritance

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
units → List<Unit>
A read only view over the units defined in this system.
no setterinherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

atto(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>-18</sup>
centi(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>-2</sup>
deci(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>-1</sup>
deka(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>1</sup>
exa(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>18</sup>
femto(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>-15</sup>
giga(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>9</sup>
hecto(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>2</sup>
kilo(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>3</sup>
mega(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>6</sup>
micro(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>-6</sup>
milli(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>-3</sup>
nano(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>-9</sup>
peta(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>15</sup>
pico(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>-12</sup>
tera(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>12</sup>
yocto(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>-24</sup>
yotta(Unit unit) → Unit
////////////// ////////////// Returns the specified unit multiplied by the factor 10<sup>24</sup>
zepto(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>-21</sup>
zetta(Unit unit) → Unit
Returns the specified unit multiplied by the factor 10<sup>21</sup>

Constants

ampere → const BaseUnit
///////////// ///////////// The base unit for electric current quantities (A).
becquerel → const AlternateUnit
The derived unit for activity of a radionuclide (Bq).
bit → const AlternateUnit
The unit for binary information (bit).
candela → const BaseUnit
The base unit for luminous intensity quantities (cd).
celsius → const Unit
The derived unit for Celsius temperature (℃).
centimeter → const Unit
Equivalent to centimetre (American spelling).
centimetre → const Unit
Equivalent to CENTI(METRE).
coulomb → const AlternateUnit
The derived unit for electric charge, Quantities.of electricity (C).
cubicMetre → const Unit
The metric unit for volume quantities (m³).
E1 → const RationalConverter
E2 → const RationalConverter
E3 → const RationalConverter
E6 → const RationalConverter
E9 → const RationalConverter
E12 → const RationalConverter
E15 → const RationalConverter
E18 → const RationalConverter
E21 → const MultiplyConverter
E24 → const MultiplyConverter
Em1 → const RationalConverter
Em2 → const RationalConverter
Em3 → const RationalConverter
Em6 → const RationalConverter
Em9 → const RationalConverter
Em12 → const RationalConverter
Em15 → const RationalConverter
Em18 → const RationalConverter
Em21 → const MultiplyConverter
Em24 → const MultiplyConverter
farad → const AlternateUnit
The derived unit for capacitance (F).
gram → const Unit
///////////////////////////// ///////////////////////////// The derived unit for mass quantities (g).
gray → const AlternateUnit
The derived unit for absorbed dose, specific energy (imparted), kerma (Gy).
henry → const AlternateUnit
The derived unit for inductance (H).
hertz → const AlternateUnit
The derived unit for frequency (Hz).
joule → const AlternateUnit
The derived unit for energy, work, Quantities.of heat (J).
katal → const AlternateUnit
The derived unit for catalytic activity (kat).
kelvin → const BaseUnit
The base unit for thermodynamic temperature quantities (K).
kilogram → const BaseUnit
The base unit for mass quantities (kg).
kilometer → const Unit
Equivalent to kilometre (American spelling).
kilometre → const Unit
Equivalent to KILO(METRE).
lumen → const AlternateUnit
The derived unit for luminous flux (lm).
lux → const AlternateUnit
The derived unit for illuminance (lx).
meter → const Unit
Equivalent to metre (American spelling).
metersPerSecond → const Unit
Equivalent to metresPerSecond (American spelling).
metersPerSquareSecond → const Unit
Equivalent to metresPerSquareSecond (American spelling).
metre → const BaseUnit
The base unit for length quantities (m).
metresPerSecond → const Unit
/////////////////////////// /////////////////////////// The metric unit for velocity quantities (m/s).
metresPerSquareSecond → const Unit
The metric unit for acceleration quantities (m/s²).
millimeter → const Unit
Equivalent to millimetre (American spelling).
millimetre → const Unit
Equivalent to MILLI(METRE).
mole → const BaseUnit
The base unit for amount of substance quantities (mol).
newton → const AlternateUnit
The derived unit for force (N).
ohm → const AlternateUnit
The derived unit for electric resistance (Ω or Ohm).
pascal → const AlternateUnit
The derived unit for pressure, stress (Pa).
radian → const AlternateUnit
The unit for plane angle quantities (rad).
second → const BaseUnit
The base unit for duration quantities (s).
siemens → const AlternateUnit
The derived unit for electric conductance (S).
sievert → const AlternateUnit
The derived unit for dose equivalent (Sv).
squareMetre → const Unit
The metric unit for area quantities (m²).
steradian → const AlternateUnit
The unit for solid angle quantities (sr).
tesla → const AlternateUnit
The derived unit for magnetic flux density (T).
unitsBySymbol → const Map<String, Unit>
volt → const AlternateUnit
The derived unit for electric potential difference, electromotive force (V).
watt → const AlternateUnit
The derived unit for power, radiant, flux (W).
weber → const AlternateUnit
The derived unit for magnetic flux (Wb).