In mathematics, a graph is a structure consisting of a set of objects in which some pairs of the objects are related). The objects correspond to mathematical abstractions called vertices (also called nodes or points) and each of the related pairs of vertices is called an edge (also called link or line) ). Graphs are used to represent data or values in an organized manner. They are one of the objects of study in discrete mathematics and the basic subject studied by graph theory). Graphs can be represented in diagrammatic form as a set of dots or circles for the vertices, joined by lines or curves for the edges). There are different types of graphs, including:
- Pictograph: The representation of information through pictures.
- Bar Graph: The representation of numerical data by rectangles (or bars) of equal width and varying height.
- Line Graph: A graph that uses dots connected by lines to show the relationship between two variables.
Graphs are also used in computer science to represent networks and solve real-life problems. For example, social media platforms like Facebook and LinkedIn use graphs to hold information about each user, where each user is a node and the connections between them are edges. Similarly, Google Maps uses graphs to represent places as nodes and the roads that connect them as edges.
