# Furlongs class final

Obscure unit no one uses but sounds funny to say. https://en.wikipedia.org/wiki/Furlong

Inheritance
Implemented types

## Constructors

Furlongs(Measurement m)
Immutable, `Unit` is Furlong.
const
Furlongs.from(PhysicalQuantities<Length> l)
toUnit support.
factory
Furlongs.fromChains()
1 fur = 10 chains
factory
Furlongs.fromFeet(Feet f)
1 fur = 220 yd = 220 * 3 = 660 ft.
factory
Furlongs.fromHands()
1 fur = 7920 in / 3 = 1980 hh
factory
Furlongs.fromInches()
1 fur = 220 yd = 220 * 36 = 7920 in
factory
Furlongs.fromLeagues()
1 lea = 3 mi = 24 fur.
factory
Furlongs.fromMiles()
1 mi = 8 fur.
factory
Furlongs.fromNum(num n)
`Crude` observation.
factory
Furlongs.fromYards()
1 fur = 220 yd.
factory

## Properties

hashCode int
The hash code for this object.
no setterinherited
magnitude → Measurement
finalinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
unit → Length
finalinherited

## Methods

baseUnit(Measurement q) → PhysicalQuantities<Length>
inherited
compareTo(PhysicalQuantities<Length> other) int
Compares this object to another object.
inherited
fundamental() → Measurement
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString()
It may seem strange to only define (+,-) without (*,/)... but conceptually things get tricky. 2 kg * 4 kg = 8 kg^2. 2 kg / 4 kg = 0.5 (no unit) These results are computational devices. They are not "masses." What is the return type? kg^2 is used within the context of gravitational attraction, but only as a factor for calculations-- it doesn't have much conceptual meaning. Multiplication might result in a single unit raised to a power or u1 * u2 Division might result in only a `NumericalValue` or u1 / u2. That complexity would make the API difficult to understand; although rigourously correct. This is all very interesting and discussed in: https://en.wikipedia.org/wiki/Unit_of_measurement#Units_as_dimensions and https://en.wikipedia.org/wiki/Quantity_calculus I'm not a physicist and I don't need it, so, punting. :P
inherited
toUnit(Length u) → PhysicalQuantities<Length>
inherited

## Operators

operator +(PhysicalQuantities<Length> o) → PhysicalQuantities<Length>
inherited
operator -(PhysicalQuantities<Length> o) → PhysicalQuantities<Length>
inherited
operator <(PhysicalQuantities<Length> o) bool
inherited
operator <=(PhysicalQuantities<Length> o) bool
inherited
operator ==(Object other) bool
The equality operator.
inherited
operator >(PhysicalQuantities<Length> o) bool
inherited
operator >=(PhysicalQuantities<Length> o) bool
inherited