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  2. Misleading graph - Wikipedia

    en.wikipedia.org/wiki/Misleading_graph

    A perspective (3D) pie chart is used to give the chart a 3D look. Often used for aesthetic reasons, the third dimension does not improve the reading of the data; on the contrary, these plots are difficult to interpret because of the distorted effect of perspective associated with the third dimension.

  3. Pie chart - Wikipedia

    en.wikipedia.org/wiki/Pie_chart

    A 3D pie chart, or perspective pie chart, is used to give the chart a 3D look. Often used for aesthetic reasons, the third dimension does not improve the reading of the data; on the contrary, these plots are difficult to interpret because of the distorted effect of perspective associated with the third dimension. The use of superfluous ...

  4. Radar chart - Wikipedia

    en.wikipedia.org/wiki/Radar_chart

    This spider chart represents the allocated budget versus actual spending for a given organization. A radar chart is a graphical method of displaying multivariate data in the form of a two-dimensional chart of three or more quantitative variables represented on axes starting from the same point. The relative position and angle of the axes is ...

  5. Plot (graphics) - Wikipedia

    en.wikipedia.org/wiki/Plot_(graphics)

    Plot (graphics) A plot is a graphical technique for representing a data set, usually as a graph showing the relationship between two or more variables. The plot can be drawn by hand or by a computer. In the past, sometimes mechanical or electronic plotters were used.

  6. Polar coordinate system - Wikipedia

    en.wikipedia.org/wiki/Polar_coordinate_system

    In blue, the point (4, 210°). In mathematics, the polar coordinate system is a two-dimensional coordinate system in which each point on a plane is determined by a distance from a reference point and an angle from a reference direction. The reference point (analogous to the origin of a Cartesian coordinate system) is called the pole, and the ...

  7. Lode coordinates - Wikipedia

    en.wikipedia.org/wiki/Lode_Coordinates

    The octahedral profile is a 2D plot of (,) holding constant. Plotting the yield surface in the octahedral plane demonstrates the level of Lode angle dependence. The octahedral plane is sometimes referred to as the 'pi plane' [10] or 'deviatoric plane'. [11]

  8. Life of Pi - Wikipedia

    en.wikipedia.org/wiki/Life_of_Pi

    Life of Pi is a Canadian philosophical novel by Yann Martel published in 2001. The protagonist is Piscine Molitor "Pi" Patel, an Indian boy from Pondicherry, India, who explores issues of spirituality and metaphysics from an early age. After a shipwreck, he survives 227 days while stranded on a lifeboat in the Pacific Ocean with a Bengal tiger ...

  9. Parametric equation - Wikipedia

    en.wikipedia.org/wiki/Parametric_equation

    Parametric equation. The butterfly curve can be defined by parametric equations of x and y. In mathematics, a parametric equation defines a group of quantities as functions of one or more independent variables called parameters. [1] Parametric equations are commonly used to express the coordinates of the points that make up a geometric object ...