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The superformula is a generalization of the superellipse and was first proposed by Johan Gielis in 2003.〔 * 〕 Gielis suggested that the formula can be used to describe many complex shapes and curves that are found in nature. The upcoming computer game ''No Man's Sky'' heavily employs the superformula for the procedural generation of its digital universe. In polar coordinates, with the radius and the angle, the superformula is: : By choosing different values for the parameters , different shapes can be generated. The formula was obtained by generalizing the superellipse, named and popularized by Piet Hein, a Danish mathematician. ==Extension to higher dimensions == It is possible to extend the formula to 3, 4, or ''n'' dimensions, by means of the spherical product of superformulas. For example, the 3D parametric surface is obtained by multiplying two superformulas ''r''1 and ''r''2. The coordinates are defined by the relations: : : : where (latitude) varies between −''π''/2 and ''π''/2 and ''θ'' (longitude) between −''π'' and ''π''. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Superformula」の詳細全文を読む スポンサード リンク
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