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The spiral of Theodorus up to the triangle with a hypotenuse of . In geometry, the spiral of Theodorus (also called the square root spiral, Pythagorean spiral, or Pythagoras's snail) [1] is a spiral composed of right triangles, placed edge-to-edge. It was named after Theodorus of Cyrene.
The so-called Spiral of Theodorus is composed of contiguous right triangles with hypotenuse lengths equal √2, √3, √4, …, √17; additional triangles cause the diagram to overlap. Philip J. Davis interpolated the vertices of the spiral to get a continuous curve.
special case of the logarithmic spiral Spiral of Theodorus (also known as Pythagorean spiral) c. 500 BC: contiguous right triangles composed of one leg with unit length and the other leg being the hypotenuse of the prior triangle: approximates the Archimedean spiral involute: 1673
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).
The following other wikis use this file: Usage on el.wikipedia.org Σπείρα του Θεοδώρου; Usage on es.wikipedia.org Espiral de Teodoro
The triangle ABC is a right triangle, ... The spiral of Theodorus: A construction for line segments with lengths whose ratios are the square root of a positive integer.
One logo features blue spiral-shaped triangle surrounded by a larger triangle, represents an pedophile who is attracted to boys.
Automedian triangle; Delaunay triangulation; Equilateral triangle; Golden triangle; Hyperbolic triangle (non-Euclidean geometry) Isosceles triangle; Kepler triangle; Reuleaux triangle; Right triangle; Sierpinski triangle (fractal geometry) Special right triangles; Spiral of Theodorus; Thomson cubic; Triangular bipyramid; Triangular prism ...