In this paper, we discuss the estimate of regression function in nonparametric regression model based on exponential integral martingale difference. Parameterization and Finite Element Analysis for Side Frame and Its Accessories of Crawler Crane 本文研究了误差项是鞅差序列,且满足某种指数矩条件的非参数回归函数的估计。履带起重机履带架及附属件结构参数化设计与有限元分析
By means of higher transcendental functions ( exponential integral, sine and cosine integral ), the general solutions ofthe problem are obtained. 通过引入高等超越函数(指数积分(EI),正弦和余弦积分等),得到了问题的一般解。
The analytical expressions are derived for the integrals containing exponential and exponential integral which appear frequently in electromagnetic field problems. 本文对电磁场问题的理论计算中常遇到的含有指数函数和指数积分(EI)函数的积分,得出了解析表达式。
Spatial discretization of the quasi-linear Burgers equation leads to a system of ordinarily differential equations, which can be solved by the exponential integral method. Numerical results show that the exponential integral method has explicit stability, and has the same accuracy as the corresponding Runge-Kutta method. 拟线性Burgers方程在空间离散后转化成常微分方程,再用指数积分(EI)方法求解.数值结果表明指数积分(EI)法有显式稳定性,有相应Runge-Kutta方法相同的精度。
Elementary approach for proving the expansion of exponential integral function 指数积分(EI)函数展开式的初等证明方法