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  2. Lookup table - Wikipedia

    en.wikipedia.org/wiki/Lookup_table

    This has been followed by subsequent spreadsheets, such as Microsoft Excel, and complemented by specialized VLOOKUP and HLOOKUP functions to simplify lookup in a vertical or horizontal table. In Microsoft Excel the XLOOKUP function has been rolled out starting 28 August 2019.

  3. Autocomplete - Wikipedia

    en.wikipedia.org/wiki/Autocomplete

    Example of the partially typed search term baby st being autocompleted to various options. Autocomplete, or word completion, is a feature in which an application predicts the rest of a word a user is typing.

  4. Formula - Wikipedia

    en.wikipedia.org/wiki/Formula

    A molecular formula enumerates the number of atoms to reflect those in the molecule, so that the molecular formula for glucose is C 6 H 12 O 6 rather than the glucose empirical formula, which is CH 2 O. Except for the very simple substances, molecular chemical formulas generally lack needed structural information, and might even be ambiguous in ...

  5. Euler–Maclaurin formula - Wikipedia

    en.wikipedia.org/wiki/Euler–Maclaurin_formula

    In mathematics, the Euler–Maclaurin formula is a formula for the difference between an integral and a closely related sum. It can be used to approximate integrals by finite sums, or conversely to evaluate finite sums and infinite series using integrals and the machinery of calculus .

  6. Filter (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Filter_(mathematics)

    A subset F of a partially ordered set (P, ≤) is a filter or dual ideal if the following are satisfied: [3] Nontriviality The set F is non-empty. Downward directed For every x, y ∈ F, there is some z ∈ F such that z ≤ x and z ≤ y.