Equation 6 · Part 2 · The Hidden Infrastructure Bill Behind Every RAG Answer
subscript
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.
Full expression→subscript→Article meaning
The passage around this formula
where S is index size in gigabytes, r(S) is Pinecone’s documented read units per query as a function of that size, Q is monthly query volume, and , , and are the published per-unit rates given earlier. Set against it, the cost of skipping retrieval and instead inlining a fixed block of extra context on every single call is
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.
Open the illustrated subscripts: which member of a family? guide →
Sources cited in the article section
- [1] API Pricing ↗
- [11] Gemini Developer API Pricing ↗
- [10] Retrieval Augmented Generation or Long-Context LLMs? A Comprehensive Study and Hybrid Approach ↗
These citations provide research context; check each source for the exact claim it supports.