Translation guide
The number of elements in a set or the concept of counting quantity. In Japanese, this is expressed through technical terms in mathematics and computer science, as well as through everyday counting expressions.
The formal mathematical concept of the number of elements in a set, including infinite cardinalities.
The standard mathematical term for cardinality, used in set theory. Literally means 'density' or 'concentration', but in this context it refers to the size of a set.
実数全体の集合の濃度は連続体濃度と呼ばれる。
The cardinality of the set of all real numbers is called the cardinality of the continuum.
Refers to cardinal numbers, often used interchangeably with 濃度 in set theory. Can also mean 'radix' in number systems.
可算集合の基数はアレフ・ヌルである。
The cardinality of a countable set is aleph-null.
Loanword from English, used in some academic contexts but less common than 濃度.
データベースのカーディナリティを調べる。
Check the cardinality of the database.
The number of distinct values in a database column or the number of rows in a table.
Commonly used in IT and database contexts. Often appears in technical documentation.
このカラムのカーディナリティは高い。
This column has high cardinality.
A descriptive phrase meaning 'number of distinct values', used when explaining the concept without jargon.
この列の異なる値の数を数えてください。
Please count the number of distinct values in this column.
The simple idea of how many items are in a group, without technical jargon.
Literally 'number of elements', a straightforward way to express cardinality in non-technical contexts.
この集合の要素の数は5です。
The cardinality of this set is 5.
Means 'number of items' or 'count', used for discrete objects. Less formal than 要素の数.
箱の中のボールの個数を数える。
Count the number of balls in the box.