This site is supported by donations to The OEIS Foundation.
Arity
From OeisWiki
In logic, mathematics, and computer science, the arity of a function/operation is the number of arguments/operands that the function/operation takes.
Arity (Latin root) | Adicity (Greek root) | Number of arguments/parameters/operands | |
---|---|---|---|
0 | Nullary | Niladic (or medadic) | |
1 | Unary | Monadic | |
2 | Binary | Dyadic | |
3 | Ternary | Triadic | |
4 | Quaternary | Tetradic | |
5 | Quinary | Pentadic | |
6 | Senary | Hexadic | |
7 | Septenary | Heptadic | |
8 | Octonary | Octadic | |
9 | Nonary (or novenary) | Enneadic | |
10 | Denary | Decadic | |
11 | Undenary | Hendecadic | |
12 | Duodenary | Dodecadic | |
n | n-ary | n-adic | n |
≥ 2 | Multiary (or multary) | Polyadic | 2 or more (plural arity/adicity) |
? | Variadic | varying (indefinite arity/adicity) |