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  2. The Two Towers - Wikipedia

    en.wikipedia.org/wiki/The_Two_Towers

    The Two Towers is the second volume of J. R. R. Tolkien's high fantasy novel The Lord of the Rings. It is preceded by The Fellowship of the Ring and followed by The Return of the King. The volume's title is ambiguous, as five towers are named in the narrative, and Tolkien himself gave conflicting identifications of the two towers.

  3. Bar chart - Wikipedia

    en.wikipedia.org/wiki/Bar_chart

    Bar graphs can also be used for more complex comparisons of data with grouped (or "clustered") bar charts, and stacked bar charts. [4] In grouped (clustered) bar charts, for each categorical group there are two or more bars color-coded to represent a particular grouping. For example, a business owner with two stores might make a grouped bar ...

  4. Four color theorem - Wikipedia

    en.wikipedia.org/wiki/Four_color_theorem

    In graph-theoretic terms, the theorem states that for loopless planar graph, its chromatic number is ().. The intuitive statement of the four color theorem – "given any separation of a plane into contiguous regions, the regions can be colored using at most four colors so that no two adjacent regions have the same color" – needs to be interpreted appropriately to be correct.

  5. Outline of the September 11 attacks - Wikipedia

    en.wikipedia.org/wiki/Outline_of_the_September...

    Planning of the September 11 attacks. On the morning of September 11, 2001, 19 al-Qaeda terrorists hijacked four commercial passenger jet airliners, intentionally crashing two into the World Trade Center in New York City. The hijackers crashed a third airliner into the Pentagon. The fourth plane crashed in a field near Shanksville, Pennsylvania.

  6. Wikipedia:Graphs and charts - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Graphs_and_charts

    A graph or chart or diagram is a diagrammatical illustration of a set of data. If the graph is uploaded as an image file, it can be placed within articles just like any other image. Graphs must be accurate and convey information efficiently. They should be viewable at different computer screen resolutions.

  7. Statistical graphics - Wikipedia

    en.wikipedia.org/wiki/Statistical_graphics

    The exploration of the content of a data set. The use to find structure in data. Checking assumptions in statistical models. Communicate the results of an analysis. If one is not using statistical graphics, then one is forfeiting insight into one or more aspects of the underlying structure of the data.

  8. Voronoi diagram - Wikipedia

    en.wikipedia.org/wiki/Voronoi_diagram

    Let H = {h 1, h 2, ..., h k} be the convex hull of P; then the farthest-point Voronoi diagram is a subdivision of the plane into k cells, one for each point in H, with the property that a point q lies in the cell corresponding to a site h i if and only if d(q, h i) > d(q, p j) for each p j ∈ S with h i ≠ p j, where d(p, q) is the Euclidean ...

  9. The Lord of the Rings: The Two Towers (video game) - Wikipedia

    en.wikipedia.org/wiki/The_Lord_of_the_Rings:_The...

    Single-player, co-op multiplayer [ b ] The Lord of the Rings: The Two Towers is a 2002 action hack and slash video game developed by Stormfront Studios for the PlayStation 2 and Xbox. A 2D Game Boy Advance game of the same name was made by Griptonite Games, a port to the GameCube by Hypnos Entertainment, and to mobile by JAMDAT.