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  2. Chord diagram (information visualization) - Wikipedia

    en.wikipedia.org/wiki/Chord_diagram_(information...

    A chord of a circle is a geometric line segment whose endpoints both lie on the circle. Chord diagrams are also known as radial network diagrams and may sometimes be referred to as a type of circular layout. Chord diagram showing cumulative electricity trade (2015–2065) among African countries (TWh)

  3. Chord diagram (mathematics) - Wikipedia

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

    With this extra information, the chord diagram of a knot is called a Gauss diagram. [4] In the Gauss diagram of a knot, every chord crosses an even number of other chords, or equivalently each pair in the diagram connects a point in an even position of the cyclic order with a point in an odd position, and sometimes this is used as a defining ...

  4. Multiaxis machining - Wikipedia

    en.wikipedia.org/wiki/Multiaxis_machining

    These machines operated on 4, 5, 6, and even 12 axes which were controlled individually via levers that rested on cam plates. The cam plates offered the ability to control the tooling device, the table in which the part is secured, as well as rotating the tooling or part within the machine.

  5. Axis system - Wikipedia

    en.wikipedia.org/wiki/Axis_system

    In the case of I or C, C-A-F ♯-D ♯, or an E ♭ fully diminished chord. This connects the axis system not only with diminished chords, which often form the basis for the movement in a piece based on the axis system, but also links the axis system with the diminished scales formed on ♭ III of each of the principal tones: root, subdominant ...

  6. Chord diagram (music) - Wikipedia

    en.wikipedia.org/wiki/Chord_diagram_(music)

    Chord diagrams for some common chords in major-thirds tuning. In music, a chord diagram (also called a fretboard diagram or fingering diagram) is a diagram indicating the fingering of a chord on fretted string instruments, showing a schematic view of the fretboard with markings for the frets that should be pressed when playing the chord. [1]

  7. 24-cell - Wikipedia

    en.wikipedia.org/wiki/24-cell

    Net. In four-dimensional geometry, the 24-cell is the convex regular 4-polytope [1] (four-dimensional analogue of a Platonic solid) with Schläfli symbol {3,4,3}. It is also called C 24, or the icositetrachoron, [2] octaplex (short for "octahedral complex"), icosatetrahedroid, [3] octacube, hyper-diamond or polyoctahedron, being constructed of octahedral cells.

  8. Ladder tournament - Wikipedia

    en.wikipedia.org/wiki/Ladder_tournament

    There is a limit as to how many rungs above themselves players may challenge. [3] [5] When first setting up a ladder tournament, the usual practice is to place the more skilled players at the bottom of the ladder, so that they have to play to work their way up. [3] Ladder competitions suffer from two problems, both resulting from the challenge ...

  9. Gomoku - Wikipedia

    en.wikipedia.org/wiki/Gomoku

    If not blocked or countered, the open row of three will be extended to an open row of four, which threatens to win in two ways. White has to block open rows of three at moves 10, 14, 16 and 20, but black only has to do so at move 9. Move 20 is a blunder for white (it should have been played next to black 19).