In the line segment midpoint coordinate formula, the midpoint refers to the center point of a straight line connecting the two ends of the line segment. According to the definition of midpoint, we can get the following formula of midpoint coordinates of line segments:

Let the coordinates of two ends of a line segment be $(x_ 1, y_ 1)$ and $(x_2, y_2)$ respectively, then the midpoint coordinate of the line segment is $ ((x _ 1+x _ 2)/2, (y _ 66).

The above formula is to add the abscissa and ordinate of the line segment respectively and take the average to get the midpoint coordinates of the line segment. This formula is applicable to any line segment, and can be used to calculate the midpoint coordinates of a line segment, regardless of its length, direction and the positions of the two endpoints.

For example, in a coordinate system, there is a line segment connecting point $( 1, 1)$ and point $ (5,3) $,then the midpoint coordinate of this line segment is $ (( 1+5)/2, (1+3)/. So the midpoint coordinate of this line segment is $ (3,2) $.

In a word, the midpoint coordinate formula of line segment is a very important basic formula in solving mathematical and geometric problems, which has a wide range of applications and high practical value.