当在最小值点的时候，两个梯度向量就垂直了。
When I am at a minimum, the two gradient vectors are parallel.
接着，我们找最小值点，会发现它不是临界点。
But then, when we are looking for the minimum of a function, well, it is not at a critical point.
也就是说，如果你可以解出来或者去除掉这些变量的点，就是临界点，当你有这样的问题要解决的时候，我们找到临界点了，它们一定是最大值点或者最小值点吗？
That means if you were able to solve and eliminate the variable that would be a critical point. When you have the same problem, as we have critical points, are they maxima or minima?
每天的点表示这一天的完全24小时视图；但是，根据数据类型，可以对这些数据求和、取最小值、取最大值或取平均值。
Each day's point represents the full 24-hour view of that day; however, depending upon the data type, the data may be summed, maximized, minimized, or averaged.
而- 1正是这个临界点处的函数值，所以，这是一个最小值。
And minus one happens to be the value at the critical point. So, it is a minimum.
如果发起人没有达到临界点的最小值，则无法继续下一步。
If the project creator doesn't reach the tipping point as a minimum, nothing goes ahead.
各点与最佳线偏离的平方之和，是所能获得的最小值。
The sum of the squares of the deviation of all points from the best line is the least it can be.
首先非线性堆滤波器用于求出图象某象素点邻域内的灰度最大值与最小值的最优估计，然后以此两估计值之差代替原象素点灰度值。
First, nonlinear stack filter is applied to estimate the maximum and minimum of noise-free image's gray scale value in a local region.
引入灰度变化率的概念，并据此提出了一种去除随机脉冲噪声的改进算法，将其用于噪声点的检测，简化了最大-最小值方法中的噪声检测过程。
This paper introduces one item named variance rate of gray level and improves the maximum-minimum method by simplifying the noise examination process for suppressing the random impulsive noise.
所以，我需要在画时作点弊，以确保最小值出现在这儿。
And so, I need to cheat a little bit on the drawing and make sure that this minimum occurs right here.
通过对矩方法的进一步分析，提出基于目标质心与目标上各点间距离之和取得最小值这一特性的质心快速搜索策略。
This paper presents a new fast algorithm by analyzing the moment method, which is based on the character that the sum of distances between centroid and other points is the minimum.
计算目标函数在偶角点处的值，然后进行长较，求出目标函数的最大值或最小值。
Calculate the values of the objective function at the corner points, then compare all of them to find out the maximum or minimum value of the objective function.
计算目标函数在偶角点处的值，然后进行长较，求出目标函数的最大值或最小值。
Calculate the values of the objective function at the corner points, then compare all of them to find out the maximum or minimum value of the objective function.
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