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Dimensions 8/9
2 Views • Dec 18, 2008
Wikipedia Context
In physics and mathematics, the dimension of a mathematical space is informally defined as the minimum number of coordinates needed to specify any point within it. Thus, a line has a dimension of one (1D) because only one coordinate is needed to specify a point on it – for example, the point at 5 on a number line. A surface, such as the boundary of a cylinder or sphere, has a dimension of two (2D) because two coordinates are needed to specify a point on it – for example, both a latitude and longitude are required to locate a point on the surface of a sphere. A two-dimensional Euclidean space is a two-dimensional space on the plane. The inside of a cube, a cylinder or a sphere is three-dimensional (3D) because three coordinates are needed to locate a point within these spaces.
Full ArticleDescription
Film produit par Jos Leys, Étienne Ghys et Aurélien Alvarez.
[http://www.dimensions-math.org]
1/9 - La dimension deux
http://www.dailymotion.com/video/x6ju64_dimensions-19_tech
2/9 - La dimension trois
http://www.dailymotion.com/video/x6k806_dimensions-29_tech
3/9 - La quatrième dimension
http://www.dailymotion.com/video/x6kd6m_dimensions-39_tech
4/9 - La quatrième dimension (suite)
http://www.dailymotion.com/video/x6kgs3_dimensions-49_tech
5/9 - Nombres complexes
http://www.dailymotion.com/video/x6kt8s_dimensions-59_tech
6/9 - Nombres complexes (suite)
http://www.dailymotion.com/video/x7rpnh_dimensions-69_tech
7/9 - Fibration
http://www.dailymotion.com/video/x7rqtm_dimensions-79_tech
8/9 - Fibration (suite)
http://www.dailymotion.com/video/x7rrjl_dimensions-89_tech
9/9 - Preuve
http://www.dailymotion.com/video/x7rs0q_dimensions-99_tech
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