数論的関数
1. Arithmetic functionIn number theory, an arithmetic (or arithmetical) function is a real or complex valued function ƒ(n) defined on the set of natural numbers that "expresses some arithmetical property of n. " An example of an arithmetic function is the non-principal character (mod 4) defined by where is the Kronecker symbol. To emphasize that they are being thought of as functions rather than sequences, values of an arithmetic function are usually denoted by a(n) rather than an.
Read “Arithmetic function” on English Wikipedia
Read “数論的関数” on Japanese Wikipedia
Read “Arithmetic function” on DBpedia
Read “Arithmetic function” on English Wikipedia
Read “数論的関数” on Japanese Wikipedia
Read “Arithmetic function” on DBpedia
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