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2. List of spirals - Wikipedia

   en.wikipedia.org/wiki/List_of_spirals

   For <, spiral-ring pattern; =, regular spiral; >, loose spiral. R is the distance of spiral starting point (0, R) to the center. R is the distance of spiral starting point (0, R) to the center. The calculated x and y have to be rotated backward by ( − θ {\displaystyle -\theta } ) for plotting.

3. Spiral - Wikipedia

   en.wikipedia.org/wiki/Spiral

   The spiral is a frequent symbol for spiritual purification, both within Christianity and beyond (one thinks of the spiral as the neo-Platonist symbol for prayer and contemplation, circling around a subject and ascending at the same time, and as a Buddhist symbol for the gradual process on the Path to Enlightenment).

4. List of mathematical shapes - Wikipedia

   en.wikipedia.org/wiki/List_of_mathematical_shapes

   regular 5-polytope 5-dimensional cross-polytope; 5-dimensional hypercube; 5-dimensional simplex; Five-dimensional space, 5-polytope and uniform 5-polytope. 5-simplex, Rectified 5-simplex, Truncated 5-simplex, Cantellated 5-simplex, Runcinated 5-simplex, Stericated 5-simplex; 5-demicube, Truncated 5-demicube, Cantellated 5-demicube, Runcinated 5 ...

5. Lucas number - Wikipedia

   en.wikipedia.org/wiki/Lucas_number

   The Lucas spiral, made with quarter-arcs, is a good approximation of the golden spiral when its terms are large.However, when its terms become very small, the arc's radius decreases rapidly from 3 to 1 then increases from 1 to 2.

6. Archimedean spiral - Wikipedia

   en.wikipedia.org/wiki/Archimedean_spiral

   The Archimedean spiral (also known as Archimedes' spiral, the arithmetic spiral) is a spiral named after the 3rd-century BC Greek mathematician Archimedes. The term Archimedean spiral is sometimes used to refer to the more general class of spirals of this type (see below), in contrast to Archimedes' spiral (the specific arithmetic spiral of ...

7. Gallery of curves - Wikipedia

   en.wikipedia.org/wiki/Gallery_of_curves

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