In mathematics, a point is one of the basic elements of a geometric figure and is regarded as a position without size and shape. The position of a point can be determined by coordinates or description. The midpoint refers to the position on the line segment or curve, which divides the line segment or curve into two equal parts. The midpoint can be determined by calculating the middle position of the line segment or using geometric construction method. It has important applications in mathematics and geometry, such as calculating the length of line segments, constructing parallel lines and proving geometric theorems.