On the first problem of a class of the second order parabolic systems of two variables and two unknown functions. 一类二阶两个自变数两个未知函数的抛物形方程组的第一问题。
A very simple method is to uselinear interpolation, which assumes that the unknown function is linear between every pair of successive points. 一个非常简单的方法是使用线性插值,它假定未知函数的线性每对之间的连续点。