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  2. Ladder graph - Wikipedia

    en.wikipedia.org/wiki/Ladder_graph

    In the mathematical field of graph theory, the ladder graph L n is a planar, undirected graph with 2n vertices and 3n – 2 edges. [ 1 ] The ladder graph can be obtained as the Cartesian product of two path graphs , one of which has only one edge: L n ,1 = P n × P 2 .

  3. Elementary mathematics - Wikipedia

    en.wikipedia.org/wiki/Elementary_mathematics

    Elementary mathematics, also known as primary or secondary school mathematics, is the study of mathematics topics that are commonly taught at the primary or secondary school levels around the world. It includes a wide range of mathematical concepts and skills, including number sense , algebra , geometry , measurement , and data analysis .

  4. Circuit topology (electrical) - Wikipedia

    en.wikipedia.org/wiki/Circuit_topology_(electrical)

    Graph of the ladder network shown in figure 2.1 with a four rung ladder assumed. Networks are commonly classified by the kind of electrical elements making them up. In a circuit diagram these element-kinds are specifically drawn, each with its own unique symbol. Resistive networks are one-element-kind networks, consisting only of R elements ...

  5. IEC 61131-3 - Wikipedia

    en.wikipedia.org/wiki/IEC_61131-3

    Part 3 of IEC 61131 deals with basic software architecture and programming languages of the control program within PLC. It defines three graphical and two textual programming language standards: Ladder diagram (LD), graphical; Function block diagram (FBD), graphical; Structured text (ST), textual

  6. Ladder diagram - Wikipedia

    en.wikipedia.org/wiki/Ladder_diagram

    Ladder diagram may refer to: Message sequence chart, in Unified Modeling Language (UML) Ladder logic, a method of drawing electrical logic schematics. A ladder diagram represents a program in ladder logic. A method of juggling notation; One type of Feynman diagram

  7. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Mathematical structure - Wikipedia

    en.wikipedia.org/wiki/Mathematical_structure

    In mathematics, a structure on a set (or on some sets) refers to providing it (or them) with certain additional features (e.g. an operation, relation, metric, or topology). Τhe additional features are attached or related to the set (or to the sets), so as to provide it (or them) with some additional meaning or significance.

  9. Treasure Mountain! - Wikipedia

    en.wikipedia.org/wiki/Treasure_Mountain!

    All the games in this series are math and reading comprehension oriented educational adventure games aimed at younger children. Games in the treasure series all have the same three stage gameplay format where a special object, whose location can be deduced by answering questions, is needed to reach the next stage.