Question

数学英译汉

Now suppose that A is a time step associated with the interface and that B1 and B2 are obtained from A by dividing it by two, possibly different, positive integers, C1 and C2 .To advance the solution from D1 to D2 ,first take an explicit step of the form 7 using A and H.then on the left and right subdomains take C1 and C2 steps of the backward difference equation .The boundary values on the interface at intermediate times are obtained by linear interpolation of the interface values.

Answer 1

现在假设A是时间步进值与接口相关，并且B1和B2从A获得通过划分它由二，可能不同，正面整数， C1和C2。要推进解答从D1到D2，第一采取形式7的一个明确步骤使用A，并且在左右subdomains的H.then采取C1和C2反向差分等式的步骤。在接口的边值在中间时刻由接口价值的线性插值法获得。