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Equation 22 · Part 2 · Ten Failure Modes That Define Production RAG

subscript

λi\lambda_i
subscript

What this part means

The lower label selects a particular version, component, or indexed member of the quantity. For example, x₀ and xₜ can be values at different positions.

Its job in the formula

A subscript distinguishes a version, component, step, or member of a quantity. It does not automatically mean multiplication.

The passage around this formula

and the marginal value of building a detector is whatever it removes from τi\tau_i . Written this way, the ranking departs sharply from intuition, because τi\tau_i spans several orders of magnitude across the ten while λi\lambda_i and ℓi\ell_i vary far less.

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Learn the underlying idea

A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.

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Sources cited in the article section

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