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Centroid information


Centroid of a triangle

In mathematics and physics, the centroid, also known as geometric center or center of figure, of a plane figure or solid figure is the arithmetic mean position of all the points in the surface of the figure.[further explanation needed] The same definition extends to any object in -dimensional Euclidean space.[1]

In geometry, one often assumes uniform mass density, in which case the barycenter or center of mass coincides with the centroid. Informally, it can be understood as the point at which a cutout of the shape (with uniformly distributed mass) could be perfectly balanced on the tip of a pin.[2]

In physics, if variations in gravity are considered, then a center of gravity can be defined as the weighted mean of all points weighted by their specific weight.

In geography, the centroid of a radial projection of a region of the Earth's surface to sea level is the region's geographical center.

  1. ^ Protter & Morrey (1970, p. 520)
  2. ^ Protter & Morrey (1970, p. 521)

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Centroid

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In mathematics and physics, the centroid, also known as geometric center or center of figure, of a plane figure or solid figure is the arithmetic mean...

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List of centroids

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The following is a list of centroids of various two-dimensional and three-dimensional objects. The centroid of an object X {\displaystyle X} in n {\displaystyle...

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Spectral centroid

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The spectral centroid is a measure used in digital signal processing to characterise a spectrum. It indicates where the center of mass of the spectrum...

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Triangle

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its centroid in a uniform gravitational field. The centroid cuts every median in the ratio 2:1, i.e. the distance between a vertex and the centroid is...

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TT Games

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developer Embryonic Studios and motion capture studio Centroid, which became TT Fusion and TT Centroid, respectively. On 8 November 2007, TT Games was bought...

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Nearest centroid classifier

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In machine learning, a nearest centroid classifier or nearest prototype classifier is a classification model that assigns to observations the label of...

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TaylorMade

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clubs, balls, and clothing. TaylorMade Golf is currently a subsidiary of Centroid Investment Partners after it was purchased from KPS Capital Partners in...

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Equivariant map

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not change its area or perimeter. However, triangle centers such as the centroid, circumcenter, incenter and orthocenter are not invariant, because moving...

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Euler line

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determined from the triangle, including the orthocenter, the circumcenter, the centroid, the Exeter point and the center of the nine-point circle of the triangle...

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Global Centroid Moment Tensor

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The Global Centroid Moment Tensor (GCMT) is a seismological and geophysical database of locations and source parameters for globally recorded earthquakes...

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Polygon

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triangles (n = 3), the centroids of the vertices and of the solid shape are the same, but, in general, this is not true for n > 3. The centroid of the vertex set...

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Quadrilateral

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diagonals with the vertex centroid. The line is remarkable by the fact that it contains the (area) centroid. The vertex centroid divides the segment connecting...

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Tetrahedron

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the centroid of the tetrahedron. In addition the four medians are divided in a 3:1 ratio by the centroid (see Commandino's theorem). The centroid of a...

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Centre points of the United Kingdom

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There are two main methods of calculating this "centre": either as the centroid of the two-dimensional shape made by the country (projected to the Airy...

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Path integral molecular dynamics

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simulation techniques that make use of the path integral formulation including Centroid Molecular Dynamics (CMD), Ring Polymer Molecular Dynamics (RPMD), and the...

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List of second moments of area

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body's second moment of area about a parallel axis through the body's centroid, the area of the cross section, and the perpendicular distance (d) between...

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Center of mass

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the body, and if the body has uniform density, it will be located at the centroid. The center of mass may be located outside the physical body, as is sometimes...

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Cluster analysis

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hierarchical clustering builds models based on distance connectivity. Centroid models: for example, the k-means algorithm represents each cluster by a...

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Geographical centre

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In geography, the centroid of the two-dimensional shape of a region of the Earth's surface (projected radially to sea level or onto a geoid surface) is...

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Center of population

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(but different) center points are: the mean center, also known as the centroid or center of gravity; the median center, which is the intersection of the...

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Isosceles triangle

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triangle's orthocenter (the intersection of its three altitudes), its centroid (the intersection of its three medians), and its circumcenter (the intersection...

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Geographical centre of Earth

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centre of all land surfaces on Earth. Geometrically defined it is the centroid of all land surfaces within the two dimensions of the Geoid surface which...

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