Then the new step function space is introduced and stability problem for the finite differencescheme is discussed by means of variational approximation method.
然后引入新的步长函数空间，并在这个空间上，采用变分近似法讨论该格式的稳定性问题。
2
Highly precise solutions both in time and in space can be reached by solving wave equation with high order finite differenceschemeof staggered grid under the condition of stability.
用交错网格的高阶有限差分方法解波动方程，在满足稳定性要求时，可获得时间和空间都是高阶精度的结果。
3
Then the new function space is introduced and the stability problem for the finite differencescheme is discussed by means of variational approximation method in this function space.