1. arithmetic; algorithm
Wikipedia definition
2. Operation (mathematics)The general operation as explained on this page should not be confused with the more specific operators on vector spaces. For a notion in elementary mathematics, see arithmetic operation. In its simplest meaning in mathematics and logic, an operation is an action or procedure which produces a new value from one or more input values. There are two common types of operations: unary and binary. Unary operations involve only one value, such as negation and trigonometric functions.
Read “Operation (mathematics)” on English Wikipedia
Read “算法” on Japanese Wikipedia
Read “Operation (mathematics)” on DBpedia


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