In a complement graph, the two vertices, which are formed after reflection of the vertices of the actual graph, are adjacent only if they are not adjacent in the actual graph. In order to make a complement graph H of an actual graph G, one has to fill in all the absent edges and remove [...]

Dual graphs are those, where for a planar graph G, the graph has a vertex for each plane region of G. Dual graphs are highly complex mathematical concepts which require skill and considerable study in order to grasp them. Self dual graphs are also a subgroup of dual graphs. Some their important properties are as [...]

Interactive graphs are those which facilitate greater viewer interaction with the data that has been plotted on a graph. They require special plug-ins and can be downloaded from the internet as well. The advantages of interactive graphs are obvious and they have gained acceptance across all spheres. Such graphs not only convey information, but also [...]

A histogram is the graphical representation of numerical data. It is a very common type of graph and consists of an x and a y axis. The representation of numerical data on a graph paper is a better way of conveying the import of the data. The term was coined by Karl Pearson and histograms [...]

Scatter plots are graphs which are composed of points and use a Cartesian system. They represent the variable values for a set of data. Scatter plots are also known as scattergrams, scatter diagrams, scatter charts and so on.

Each point which makes up the scatter plot consists of one variable that makes up the value [...]

A parabola is a conic section, with a focus and a directrix. The representation of a parabola on a graph is called a parabolic graph. Parabola graphs are commonly used in mathematics and physics and they are also extremely useful in a number of other fields. They are also used extensively in engineering and design [...]

Cosmographs are a kind of graph resembling pie charts, with significant differences as well. They are not as numerically oriented as pie charts and they are usually used in order to represent finances. Cosmographs have their advantages as well as their disadvantages and yet, they are used quite commonly.

Cosmographs are often used by government [...]

Pictographs are graphs where pictures or symbols are used to represent the various points and data on the graph, along with a key. They are usually used in schools to impart basic education in graphs to students who are just beginning to get a grasp of graphs. However, they are challenging and pictographs need some [...]