Equation 3 · Part 1 · The Hidden Infrastructure Bill Behind Every RAG Answer
Symbol r
What this part means
r 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
r is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol r→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 function assigns an output to each allowed input. The expression f(x) means “apply f to x”.
Open the illustrated functions: inputs become outputs guide →
See this notation across published equations →
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.