Graph
A graph is In linguistics, a letter or symbol such as an alphabetic letter, a Chinese character, or a hieroglyph. In mathematics, the word graph can have three meanings:* In graph theory, a graph is an abstract object consisting of vertices (or nodes) and edges (or arcs) between pairs of vertices.* The graph of a function f : X -> Y is the set of all pairs (x,f(x))* The graph of a relation, a generalisation of the graph of a function. In computer science, a graph is a data structure representing mathematical graphs. Graph is sometimes used (though incorrectly) as a synonym for a chart.
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