Nonlinear directly estimating formula for exponential curve which, through fixed point, was derived, by using first order approximation of Taylor expansion.
运用泰勒展开的一阶近似估计推导过定点的指数曲线的非线性直接估计公式。
2
The numerical example of exponential distribution implies that the approximation effect is good.
从指数分布的数值例子看，有较好的近似效果。
3
In this paper, a class of mixed exponential type integral operators are considered and the equivalent theorems of the characterization of approximation rate are given.