In mathematics, eta function may refer to:
- The Dirichlet eta function η(s), a Dirichlet series
- The Dedekind eta function η(τ), a modular form
- The eta function η(s) used to define the eta invariant
Famous quotes containing the word function:
“Think of the tools in a tool-box: there is a hammer, pliers, a saw, a screwdriver, a rule, a glue-pot, nails and screws.—The function of words are as diverse as the functions of these objects.”
—Ludwig Wittgenstein (1889–1951)