Using the analytic method of the anisotropic element, error estimate for the secondorder problem is obtained without the limitation of regularity conditions.
利用各向异性单元分析方法得到了二阶问题的误差估计，从而避开了正则性条件的限制。
2
In this paper, a new method of error estimate for the generalized difference method of secondorder elliptic problems on triangle grids is given.
文章给出了三角网格上二阶椭圆问题广义差分方法的一种新的误差估计方法。
3
A simple formula of unit noise gain is derived for suboptimal second-order state-space digital filter with error feedback.