← All parts of this equation

Equation 1 · Part 6 · Comparing the Main Approaches to AI for Science and Medicine

subscript

N^hits  ≈  ∑sh(s) N(s)\hat{N}_{\text{hits}} \;\approx\; \sum_{s} h(s)\, N(s)
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

High-throughput virtual screening takes the opposite approach: rather than proposing new compositions, it exhaustively scores a library that already exists. The clearest demonstration is ultra-large library docking, in which researchers computationally docked a library of 170 million make-on-demand compounds, built from 130 well-characterized reactions, against two protein targets: AmpC beta-lactamase and the D4 dopamine receptor [ 8 ] . Against AmpC, 99 million library members were scored, 51 top-ranked compounds were selected and 44 synthesized, yielding an 11% hit rate and, after optimization, a 77-nanomolar inhibitor among the most potent non-covalent AmpC inhibitors then known. Against…

Read this part in the article →

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 surrounding passage

These citations provide research context; check each source for the exact claim it supports.