A mapping is a function.
f: A -> B
This statement says f is a function and it maps from set A to set B.
In order for f to be a function, for every element of A, there must exist uniquely f(a) in B.
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A diagram that links elements of the domain and range.
asdfasdf well ^ that was a stupid answer but yes it is a math word
somhing that has to do with math
The full word form for math is mathematics. Note: "Maths" is not a word.
A relation is a mapping from one set to another. The two sets may be the same, or different. It is an association between elements (or members) of one set with those of the other set. Some mappings are functions but mappings need not be functions.