【摘要】 本研究以河南省 1949～ 1998年 49年原煤产量的档案资料作为研究材料 ,采用计算机处理模拟出时间序列动态数学模型 45个 ,从中选出 7个最优回归模型 ,并以模型对未来年份原煤产量进行预测。同时绘制折线图、曲线图 7个更多还原

【Abstract】 In this paper, forth tive mobilizing mathematical models of time sequence were simulated by the computer based on the material of Henan raw coal yield from 1949 to 1998 on file and seven superior regressive models were selected from them. In addition, we picture seven broken line and curve graphs and predict the yield of raw coal in the future.更多还原