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1.14: Glossary

  • Page ID
    17019
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    list:
    A sequence of values.
    element:
    One of the values in a list (or other sequence), also called items.
    index:
    An integer value that indicates an element in a list.
    nested list:
    A list that is an element of another list.
    list traversal:
    The sequential accessing of each element in a list.
    mapping:
    A relationship in which each element of one set corresponds to an element of another set. For example, a list is a mapping from indices to elements.
    accumulator:
    A variable used in a loop to add up or accumulate a result.
    augmented assignment:
    A statement that updates the value of a variable using an operator like +=.
    reduce:
    A processing pattern that traverses a sequence and accumulates the elements into a single result.
    map:
    A processing pattern that traverses a sequence and performs an operation on each element.
    filter:
    A processing pattern that traverses a list and selects the elements that satisfy some criterion.
    object:
    Something a variable can refer to. An object has a type and a value.
    equivalent:
    Having the same value.
    identical:
    Being the same object (which implies equivalence).
    reference:
    The association between a variable and its value.
    aliasing:
    A circumstance where two or more variables refer to the same object.
    delimiter:
    A character or string used to indicate where a string should be split.

    1.14: Glossary is shared under a CC BY-NC-SA 3.0 license and was authored, remixed, and/or curated by Allen B. Downey (Green Tea Press) .

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