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A circle of radius r for the Chebyshev distance (L ∞ metric) on a plane is also a square with side length 2r parallel to the coordinate axes, so planar Chebyshev distance can be viewed as equivalent by rotation and scaling to planar taxicab distance. However, this equivalence between L 1 and L ∞ metrics does not generalize to higher dimensions.
Kilometre per square kilometre is an SI derived unit of reciprocal length used for measurement of density of a linear feature in an area. It is used to measure, for example, drainage density [ 1 ] or road density (i.e. kilometres of road per square kilometre of land).
Volume charge density (symbolized by the Greek letter ρ) is the quantity of charge per unit volume, measured in the SI system in coulombs per cubic meter (C⋅m −3), at any point in a volume. [1] [2] [3] Surface charge density (σ) is the quantity of charge per unit area, measured in coulombs per square meter (C⋅m −2), at any point on a ...
Taxi fares are set by the state and city where they are permitted to operate. The fare includes the 'drop', a set amount that is tallied for getting into the taxi plus the 'per kilometer' rate as has been set by the city. The taxi meters track time as well as distance in an average taxi fare.
The rates for a Yellow Cab in Pittsburgh as of September, 2011 are an initial charge of $3.35 plus $0.25 per 1/7 of a mile, plus $0.25 for each minute of waiting time. In trips over 20 miles, the meter will automatically begin calculating the distance following the initial 20 miles at $0.50 per 1/7 mile.
A taximeter or fare meter is a mechanical or electronic device installed in taxicabs and auto rickshaws that calculates passenger fares based on a combination of distance travelled and waiting time. Its shortened form, "taxi", is also a metonym for the hired cars that use them. [1] [2]
kilometre (km) or kilometer is a metric unit used, outside the US, to measure the length of a journey; the international statute mile (mi) is used in the US; 1 mi = 1.609344 km; nautical mile is rarely used to derive units of transportation quantity.
The fermi is a unit of distance used in nuclear physics equal to 1 fm. [9] The angstrom (symbol Å) is a unit of distance used in chemistry and atomic physics equal to 100 pm. The micron (μ) is a unit of distance equal to one micrometre (1 μm). The basic module (M) is a unit of distance equal to one hundred millimetres (100 mm).