Equation 3 · Part 2 · Cities Are Organisms That Refuse to Die: Urban Evolution to 2100
Symbol N
What this part means
N is an argument of the function-like quantity on the left; its role is set by that function’s stated inputs.
Its job in the formula
N is an argument of the function-like quantity on the left; its role is set by that function’s stated inputs.
Full expression→Symbol N→Article meaning
The passage around this formula
…infrastructure scale sublinearly: length of electrical cable 0.87, road surface 0.83, gasoline stations 0.77, gasoline sales 0.79 [ 1 ] . In the compact notation the paper made famous, a quantity Y relates to population N as . where 1.15 for the socioeconomic quantities and 0.85 for the infrastructural ones. A city twice the size of another does not simply have twice the patents and twice the roads; it tends to have somewhat more than twice the patents and somewhat…
Learn the underlying idea
A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.
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Sources cited in the surrounding passage
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