# Teaching the Trading System of Chuan Theory
In fact, the division of line segments can be completed in the moment, and it is simply the following procedure: Assume a certain turning point is the boundary point between two line segments, and then examine whether it meets the conditions of the two cases of line segment division. If it satisfies one of them, then this point is the true boundary point of the line segment; if it does not satisfy, then it is not, and the original line segment continues. It’s that simple.