Wolfram Research Mathworld, Repository hosted at UIUC
(13.662 recursos)
Wolfram Research's MathWorld is a comprehensive and interactive mathematics encyclopedia intended for students, educators, math enthusiasts, and researchers. It has been assembled by internet encyclopedist Eric W.ÊWeisstein with assistance from the mathematics and internet communities. Like the discipline of mathematics, this site is continuously updated to include new material and incorporate new discoveries. This is a free service for the mathematical community provided by Wolfram Research, makers of Mathematica, with additional support from the National Science Foundation.
Mostrando recursos 1 - 2 de 2
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Rank -- from MathWorld - Weisstein, Eric W.
The word "rank" refers to several related concepts in mathematics involving groups, matrices, quadratic forms, sequences, set theory, statistics, and tensors. In set theory, rank is a (class) function from sets to ordinal numbers. The rank of a set is the least ordinal number greater than the rank of any member of the set (Mirimanoff 1917; Moore 1982, pp. 261-262; Rubin 1967, p. 214). The proof that rank is well defined uses the axiom of foundation. For example, the empty set \{\} has...
- 29-oct-2004
2.
Statistic -- from MathWorld - Weisstein, Eric W.
A quantity (such as a statistical median, quartile deviation, etc.), which is calculated from observed data. See also: Anderson-Darling Statistic, h-Statistic, k-Statistic, Kuiper Statistic, Statistics, Variate
- 29-oct-2004
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