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[2] viXra:2301.0110 [pdf] submitted on 2023-01-22 00:02:38
Authors: Marc Schofield
Comments: 8 Pages.
The unit circle and the cuspidal cubic curve have been found to intersect at coordinates that can be defined by the Plastic constant, which is defined as the solution to the cubic function x^3 = x + 1. This report explores the connections between the algebraic properties of the Plastic constant and the geometric properties of the circle and this curve.
Category: Geometry
[1] viXra:2301.0030 [pdf] submitted on 2023-01-05 02:54:05
Authors: Guillermo Ayala-Martinez
Comments: 5 Pages. In Spanish
Computed tomography CT is an im portant diagnostic imaging methodo used in medicine, consists of appliyng an X-ray scan to a flat section to obtain its imagen, it is a non-invasive and non-destructive procedure. The imagin CT is obtained whit multiple projections, for this reason it is necessary to use a computer. A simple geometric algorithm is proposed to program the computer, it is no necessary to use successive approximations or discretize the image, as in other procedures, in this case the image is a point map.
Category: Geometry
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