Equation 3 · Part 1 · What Actually Happens Inside a Very Long Claude Context Window
Symbol d
What this part means
the model’s hidden dimension.
Its job in the formula
d 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 d→Article meaning
Where the article explains it
where d is the model’s hidden dimension.
The passage around this formula
where d is the model’s hidden dimension. Doubling the context does not double the work of relating everything in it to everything else; it roughly quadruples that specific cost. Anthropic’s guidance frames the practical consequence in the language of a finite resource: models have what it describes as a…
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.
Open the illustrated variables: a letter stands for a value guide →
See this notation across published equations →
Sources cited in the surrounding passage
These citations provide research context; check each source for the exact claim it supports.