Grid

In mathematics, a grid is a set of intersecting lines. It is widely used in mathematics for locating points, drawing figures, organizing data, and more.

The following are some examples of grids used in math.

Coordinate systems

Coordinate systems often use grids to help with determining the position of points in a coordinate plane. In a rectangular coordinate plane, the grid is normally parallel to the x- and y- axis. Grids are also frequently used in the context of polar coordinate systems, maps, and other coordinate systems. The following are some examples.

Graph paper

Graph paper, also called coordinate paper, squared paper, or grid paper, is paper printed with lines that make up a structure of regularly spaced, intersecting lines, that may be straight or curved. Graph paper is useful for plotting graphs and drawing curves.

Graph paper is available either as loose-leaf paper or bound in notebooks. The most common type of graph paper is printed with square grids of equal size. Log-log grid paper, polar coordinate paper, and many other types also exist.

Other usages of grids in mathematics

Grids are also widely used in mathematics for organizing data or demonstrating a concept. The multiplication table and addition table below are two examples.


×123456789
1123456789
224681012141618
3369121518212427
44812162024283236
551015202530354045
661218243036424854
771421283542495663
881624324048566472
991827364554637281

+123456789
12345678910
234567891011
3456789101112
45678910111213
567891011121314
6789101112131415
78910111213141516
891011121314151617
9101112131415161718