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

你知道，这旧的量子力学，求解偏微分方程。

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

因此，所有这些工作通常都绕着求解三维偏微分方程展开。

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方程所需的两个要始条件和边界条件。

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

因此，它匹配或试图模仿应用程序在求解三维偏微分方程时所执行的操作。