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  2. Mark tree - Wikipedia

    en.wikipedia.org/wiki/Mark_tree

    Bar chimes by Meinl. A mark tree (also known as a nail tree, chime tree, or bar chimes) is a percussion instrument used primarily for musical color. [1] It consists of many small chimes—typically cylinders of solid aluminum or brass tubing about 3/8" in diameter—of varying lengths, hung from a bar.

  3. 2–3–4 tree - Wikipedia

    en.wikipedia.org/wiki/2–3–4_tree

    Split the remaining 3-node up into a pair of 2-nodes (the now missing middle value is handled in the next step). If this is the root node (which thus has no parent): the middle value becomes the new root 2-node and the tree height increases by 1. Ascend into the root. Otherwise, push the middle value up into the parent node.

  4. Python syntax and semantics - Wikipedia

    en.wikipedia.org/wiki/Python_syntax_and_semantics

    Python sets are very much like mathematical sets, and support operations like set intersection and union. Python also features a frozenset class for immutable sets, see Collection types. Dictionaries (class dict) are mutable mappings tying keys and corresponding values. Python has special syntax to create dictionaries ({key: value})

  5. Abstract syntax tree - Wikipedia

    en.wikipedia.org/wiki/Abstract_syntax_tree

    An abstract syntax tree (AST) is a data structure used in computer science to represent the structure of a program or code snippet. It is a tree representation of the abstract syntactic structure of text (often source code) written in a formal language. Each node of the tree denotes a construct occurring in the text.

  6. Pseudocode - Wikipedia

    en.wikipedia.org/wiki/Pseudocode

    Pseudocode is a technique used to describe the distinct steps of an algorithm in a manner that's easy to understand for anyone with basic programming knowledge. Pseudocode is commonly used in textbooks and scientific publications related to computer science and numerical computation to describe algorithms in a way that is accessible to ...

  7. Behavior tree - Wikipedia

    en.wikipedia.org/wiki/Behavior_tree

    Core elements of the behavior tree notation. A behavior tree is used to formally represent the fragment of behavior in each individual requirement. Behavior for a large-scale system in general, where concurrency is admitted, appears abstractly as a set of communicating sequential processes. The behavior tree notation captures these composed ...

  8. Argument map - Wikipedia

    en.wikipedia.org/wiki/Argument_map

    The argument map tree schema of Kialo with an example path through it: all Con-argument boxes and some Pros were emptied to illustrate an example path. [34] A partial argument tree with claims and impact votes for arguments illustrates one form of collective determination of argument weights that is based on equal-weight user voting. [35]

  9. Tree rotation - Wikipedia

    en.wikipedia.org/wiki/Tree_rotation

    This implies the order of the elements is not affected when a rotation is performed in any part of the tree. Here are the inorder traversals of the trees shown above: Left tree: ((A, P, B), Q, C) Right tree: (A, P, (B, Q, C)) Computing one from the other is very simple. The following is example Python code that performs that computation: