(applied mathematics) A data chart (graphical representation of data) intended to illustrate the relationship between a set (or sets) of numbers (quantities, measurements or indicative numbers) and a reference set, whose elements are indexed to those of the former set(s) and may or may not be numbers.
User Defined Definitions
"a visual representation of the relations between certain quantities, represented as points, plotted with reference to a set of axes"
"a visual display of information"
"a written symbol that is used to represent speech"