用多重网格法解非线性偏微分方程，假定N=4时为第0层l为输入的层数 r为MGM在在J-1层调用的次数-With multi-grid method for solving nonlinear partial differential equations, assuming N = 4 when the input layer 0 l layers r for MGM in the number of J-1 layer calls

使用Matlab软件进行灰色模型的预测分析，具体的源代码都包含。(Grey model to predict the analysis using matlab software, the specific source code is included.)