Research on application of complex function in defining effective dots

Ascertain prediction-area is the foremost procedure in forecasting the ground mining subsidence by probability integral method. According to the need of the research and the condition of the mining, Prediction-area probably is the random shape polygon in the specific engineering application. Formerly in procedure prediction-area is designed in dots that arrayed in rectangle, so some ineffective dots is calculated, and prolong the calculating time. According to the basic principle which changes the vector formatting into the grid formatting, we can construct one of the complex functions and deduce the means of which the dots are effective and which of dots are ineffective. We can translate the math langue into the computer langue by the C++ operator overloading, so ineffective dots are eliminated and the calculating speed is speeded up and waiting time is shorten.