Positive curvature, like that on a sphere, implies a finite universe, while zero curvature, as on a flat plane or negative ...

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Tessellations aren’t just eye-catching patterns—they can be used to crack complex mathematical problems. By repeatedly reflecting shapes to tile a surface, researchers uncovered a method that links ...

Abstract: This paper presents a method for reconstructing relative positions of a group of robots from only acoustic pulses sent and received by the robots. The approach is fully distributed — each ...

Abstract: The geometrical form such as polygon shape can be used to represent object image via their geometrical properties. The geometry shapes such as polygon including rectangles, squares, ...

Neste artigo, apresenta-se a evolução das ideias sobre a quarta dimensão espacial, partindo daquelas que surgem da geometria euclidiana clássica e abordando, em seguida, as que resultam do âmbito das ...