Using the analytic method of the anisotropic element, error estimate for the second order 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。

youdao

In this paper, a new method of error estimate for the generalized difference method of second order 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。

youdao

A simple formula of unit noise gain is derived for suboptimal second-order state-space digital filter with error feedback.

本文导出误差反馈次最优二阶状态空间数字滤波器单位噪声增益的计算公式。

youdao

In order to achieve zero tracking error, the fund manager must hold exactly the index for every second of the day.

FORBES: Getting Over Index Investing With A Better Way