cardinality
3
9.9
- noun
- /ˌkɑrdɪˈnælɪti/
- Specialized
:
cardinalidad
- We focused on interconnected knowledge about number (e.g., cardinality, inverse relation between addition and subtraction, commutative property).
- cardinality constraint
- relationships and cardinalities
For every set, the cardinality of this, the set of all subsets.
- For every set, the cardinality of this, the set of all subsets.
Examples
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In mathematics, the cardinality of a set determines how many elements it contains.
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One quote from a session was "A wrong plan is always caused by wrong cardinality estimates."
Blog text (6) -
For every set, the cardinality of this, the set of all subsets.
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For a set S, S denotes the cardinality of S.
Academic text (2010) -
It is assigned as the cardinality for the natural numbers, right?
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Finally, one point was awarded for each minimum or maximum cardinality recalled and assigned to a valid relationship.
Academic text (2005) -
However, due to space limitations, these cardinalities are not explained in this paper.
Academic text (2003) -
Evidently, Oracle is putting research and development money into improving the optimizer's cardinality estimates in future releases.
Blog text (6) -
For example, counting requires mastery of the principles of one-to-one correspondence, stable order, cardinality, and abstraction.
Academic text (2005) -
Understanding cardinality is crucial when comparing the sizes of different sets.
Synonyms
∞
1.0
The total of people or things in a group
1
8.6
A number that shows how many items are in a set
1
2.4
A number that shows how many things there are, not their order, for example one, two, three
1
8.8
A large number of things or people
How Many
Surface Forms
Morphology
Etymology
Cardinality comes from cardinal, which means 'main' and appears in cardinal numbers, the numbers that tell 'how many', for example 'one', 'two', 'three'. So cardinality is the 'how many' of a set or group.