Category:Functions
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This category contains results about Functions.
The process which is symbolised by an operation is called a function.
The operand(s) of the operation can be considered to be the input(s).
The output of the function is whatever the operation is defined as doing with the operand(s).
A function is in fact another name for a mapping, but while the latter term is used in the general context of set theory and abstract algebra, the term function is generally reserved for mappings between sets of numbers.