In mathematics, a one-dimensional space refers to a space that can be described using only one coordinate or dimension. It is the simplest form of space, often visualized as a straight line. In a one-dimensional space, points are located along this line, and each point can be uniquely identified by its position on the line, represented by a single coordinate.
One-dimensional objects or entities have only length but no width or height. They are infinitely thin and can be thought of as having no volume. Examples of one-dimensional objects include a wire, a line segment, a thread, or the number line.
In physics, one-dimensional systems are often used as simplified models to study certain phenomena. They allow for easier analysis and calculations compared to higher-dimensional systems. One-dimensional motion, for example, involves the movement of objects along a straight line with no other degrees of freedom.