经济预测是对客观经济过程及其变化趋势的预料和推测,对提高经济效益和加强管理起着重要的作用。本文主要介绍利用趋势修正滑动平均法,根据数学原理推导出预测的数学模型,进行定量预测鞍钢公司实现的利税,其结果与定性分析的结果是一致的,证明定量预测的结果是真实可靠的。 Economic forecasting is the anticipation and speculation of the objective economic process and its changing trend, which plays an important role in improving economic efficiency and strengthening management. This paper mainly introduces the use of trend amending sliding averaging method to deduce the mathematical model based on mathematical principles to predict the profit and tax realized by Ansteel Company quantitatively. The result is consistent with the result of qualitative analysis, which proves that the result of quantitative prediction is true and reliable.