Parameter estimation and error aanalysis of forecasting model of exponential curve 指数曲线预测模型的参数估计与误差分析
The second one is a brand - new method based on dual - exponential curve transformation 第二种则是依据一个称为双指数曲线转换的全新方法。
The calculating results showed that elemental average infiltration ratio decreases with the increase of slope degrees 计算结果表明,农田、草地生态单元土壤平均入渗速率随坡度的增加呈指数曲线下降。
According to the estimate model of step 3 , the curve of the productivity of oil and gas in a layer of a meter can be computed 应用3中建立的预测模型,计算出了单井每米采泊指数及每米采气指数曲线。
By utilizing the inherent exponential curves , high - linearity components are not necessarily required and the design efforts are relaxed 由于采用的是最自然的指数曲线,所以我们的线路可以不需要高线性度的元件,因而降低了设计上的难度。