You know, it was the old quantum mechanics, solving partial differential equations.

你知道，这是旧的量子力学，求解偏微分。

So all of those things usually center on solving the three-dimensional partial differential equations.

，所有这些工作通常都绕着求解三维偏微分开。

But to know the two things in physics to solve a partial differential equation are the initial conditions and the boundary conditions.

但要知道在物理学中求解偏微分所需的两个要素是初始条件和边界条件。

So it matches or tries to imitate what applications do in solving that three-dimensional partial differential equation.

，它匹配或试图模仿应用序在求解三维偏微分时所执行的操作。