stochastic differential的用法和樣例：
例句
- This method is based on Ito stochastic differential equation which provides the statistical characteristic of the state variables.
此研究方法是以伊藤隨機微分方程式為主。 - At last, we extend the finite horizon to the infinite horizon and present the form of stochastic differential utility under the infinite horizon.
最後，將有限時間水平推廣到無限時間水平，給出了無限時間水平下隨機微分效用的形式。
