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2. Four Seasons (card game) - Wikipedia

   en.wikipedia.org/wiki/Four_Seasons_(card_game)

   The rules were first published in 1883 by Dick under the name The Four Seasons which used a 3 x 3 card layout, the foundations being the four corners. [4] In 1898, Mary Whitmore Jones published essentially the same game under the name Czarina Patience using an 'exploded' layout in which the four corner cards were moved away from the tableau which now assumed the form of a cross of five cards. [5]

3. List of coordinate charts - Wikipedia

   en.wikipedia.org/wiki/List_of_coordinate_charts

   Coordinate charts are mathematical objects of topological manifolds, and they have multiple applications in theoretical and applied mathematics. When a differentiable structure and a metric are defined, greater structure exists, and this allows the definition of constructs such as integration and geodesics .

4. Chord diagram (mathematics) - Wikipedia

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

   In mathematics, a chord diagram consists of a cyclic order on a set of objects, together with a one-to-one pairing (perfect matching) of those objects. Chord diagrams are conventionally visualized by arranging the objects in their order around a circle , and drawing the pairs of the matching as chords of the circle.

5. Mathematical table - Wikipedia

   en.wikipedia.org/wiki/Mathematical_table

   Mathematical tables are lists of numbers showing the results of a calculation with varying arguments.Trigonometric tables were used in ancient Greece and India for applications to astronomy and celestial navigation, and continued to be widely used until electronic calculators became cheap and plentiful in the 1970s, in order to simplify and drastically speed up computation.

6. Chart - Wikipedia

   en.wikipedia.org/wiki/Chart

   A radar chart or "spider chart" or "doi" is a two-dimensional chart of three or more quantitative variables represented on axes starting from the same point. A waterfall chart also known as a "Walk" chart, is a special type of floating-column chart. A tree map where the areas of the rectangles correspond to values. Other dimensions can be ...

7. Venn diagram - Wikipedia

   en.wikipedia.org/wiki/Venn_diagram

   A Venn diagram is a widely used diagram style that shows the logical relation between sets, popularized by John Venn (1834–1923) in the 1880s. The diagrams are used to teach elementary set theory, and to illustrate simple set relationships in probability, logic, statistics, linguistics and computer science.