Jisho

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かんすう 関数
Noun
1. hash functionComputing
Wikipedia definition
2. Hash functionA hash function is any algorithm or subroutine that maps large data sets of variable length, called keys, to smaller data sets of a fixed length. For example, a person's name, having a variable length, could be hashed to a single integer. The values returned by a hash function are called hash values, hash codes, hash sums, checksums or simply hashes.
Read “Hash function” on English Wikipedia
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