和其他基于图像的二次投影方法相比，这里仅需要两幅参考图像，且实现方法简单快速。
Comparing with other image re-projection methods, this method needs only two reference images and the implementation is easy and quick.
和其他基于图像的二次投影方法相比，这里仅需要两幅参考图像，且实现方法简单快速。
Compared with other image re - projection methods, this method needs only two reference images and is easy and quick to be implemented.
采用椭球剖分策略剖分可行域为小的椭球，用投影次梯度算法解松弛二次规划问题的拉格朗日对偶问题，从而获得原问题的一个下界。
A projection subgradient algorithm for the Lagrangian dual problem of the relaxed quadratic problem is employed to general lower bounds of the optimal value for the original problem.
借助投影型插值算子的性质得出了二次奇妙族元第一型弱估计。
The weak estimate of the first type is derived by using the properties of the interpolation operator of projection type.
引入相应的格林空间随机系统，应用格林空间投影理论和新息分析方法，得到了不定二次型的最小值及其存在条件。
Then, by introducing a corresponding Krein space stochastic system and applying projection and innovation analysis, the minimum of indefinite quadratic form and its existence condition are derived.
本文对现有的变分不等式问题的二次外梯度投影算法进行分析，并对可行域为球的二次外梯度投影算法的计算过程进行简化。
This paper makes an analysis of this quadratic outer gradient project algorithms and simplifies the process of the computation of projection needed in this method for the case of domain being a ball.
具有公共对称平面的二次曲面的交线在该平面上的投影为二次曲线。
It is known that the projection of the intersection of quadrics with common plane of symmetry on this plane is a curve of second order.
具有公共对称平面的二次曲面的交线在该平面上的投影为二次曲线。
It is known that the projection of the intersection of quadrics with common plane of symmetry on this plane is a curve of second order.
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