User:Richard Pinch/Redlinks: Difference between revisions

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imported>Richard Pinch
(deleting some that have been done)
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From [[Centre (mathematics)]]:
From [[Centre (mathematics)]]:
* In an algebraic structure, elements that commute with every element of the structure
** The [[centre of a group]], elements that commute with every group element
* The centre of a [[circle]]
* The centre of mass, centroid or [[barycentre]] of a geometrical figure
* In [[triangle geometry]]
* In [[triangle geometry]]
** The [[centroid]], intersection of the [[median]]s
** The [[circumcentre]], intersection of the [[perpendicular bisector]]s of the sides, centre of the circle through the vertices
** The [[nine-point centre]]
** The [[orthocentre]], intersection of the [[altitude]]s
** The [[incentre]], centre of a circle [[tangent]] to the sides
** The [[excentre]]s, centres of the three circles internally tangent to one side and  externally to the other two
** The [[excentre]]s, centres of the three circles internally tangent to one side and  externally to the other two


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* An element of a group in a [[chain complex]] in [[homological algebra]]
* An element of a group in a [[chain complex]] in [[homological algebra]]
* The [[chain rule]] for the [[derivative]] of [[function composition]]
* The [[chain rule]] for the [[derivative]] of [[function composition]]
From [[Identity matrix]]:
In [[matrix algebra]], the '''identity matrix''' is a [[square matrix]] which has all the entries on the main [[diagonal]] equal to one and all the other, off-diagonal, entries equal to zero.  The identity matrix acts as the [[identity element]] for [[matrix multiplication]].


From [[Talk:Series (mathematics)]]:
From [[Talk:Series (mathematics)]]:
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* [[Series (lattice theory)]], a chain in a partially ordered set
* [[Series (lattice theory)]], a chain in a partially ordered set
* [[Time series]] in probability and statistics
* [[Time series]] in probability and statistics
From [[Identity element]]:
* Existence of an identity element is one of the properties of a [[group (mathematics)|group]] or [[monoid]].
* An [[identity matrix]] is the identity element for [[matrix multiplication]].
* [[Identity (mathematics)]]


From [[Distributivity]]:
From [[Distributivity]]:

Revision as of 02:38, 13 December 2008

A list of redlinks I've created with the intention of filling in at some time:

From Centre (mathematics):

From Composition (mathematics):

From Chain (mathematics):

From Talk:Series (mathematics):

From Distributivity:

From Commutativity: a property of binary operations or of operators on a set

From Cantor set: The Cantor set is ... second countable, dense-in-itself, totally disconnected.