Difference between revisions of "Measure"
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− | In [[mathematics]], '''measure''' can mean the amount of [[degree]]s in an [[angle]], the [[length]] of a [[line segment]], or a [[function]] that assigns a [[number]] to [[subset]]s of a given [[set]]. | + | In [[mathematics]], '''measure''' can mean the amount of [[degree (geometry) | degree]]s in an [[angle]], the [[length]] of a [[line segment]], or a [[function]] that assigns a [[number]] to [[subset]]s of a given [[set]]. |
== Line Segments == | == Line Segments == |
Revision as of 14:06, 9 November 2006
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In mathematics, measure can mean the amount of degrees in an angle, the length of a line segment, or a function that assigns a number to subsets of a given set.
Contents
Line Segments
The measure of is indicated by
, without the bar on top. If
, then
.
Angles
The measure of is indicated by
. If
, then
.
The measure of an angle can expressed in degrees or in radians.
Sets
The measure of a set is known as the set's cardinality. If , then the cardinality of set
is
.