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Equation 2 · Part 1 · Humanity Has Always Been a Human–Technology System

Symbol i

ii
ii

What this part means

i is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Its job in the formula

i is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

The passage around this formula

A minimal cultural-selection model can represent the frequency xix_i of a variant i as

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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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