In the coordinate system, the vector (zhidi m: n) used to determine the position of a particle is called the position vector, or simply the potential vector. The position vector is a directed line segment from the coordinate origin to the particle position.
How to understand the displacement vector from the perspective of college physics: the displacement vector represents the increment of the potential vector in a period of time. Because it has the same mathematical expression as the potential vector, many people don't understand the displacement vector clearly enough.
Displacement vector is called displacement for short. Mathematically, it is expressed by the vector difference between the last vector and the initial vector. Because it is a vector operation, the displacement is also a vector. In rectangular coordinate system, every component of displacement is obtained by subtracting every component of the last vector from every component of the initial vector. The magnitude of displacement is the sum of squares of corresponding components in rectangular coordinate system.
The displacement direction is a directed physical quantity from the starting point to the end point. The difference between displacement and distance, displacement is obtained by vector operation of two vectors, the size is the connecting line between two points, and the distance is the arc length of movement in a period of time, which is a scalar. Displacement and distance have their specific representations on the map.