Their common purpose is to compute the displacement at each iteration step in any optimization algorithms and obtain a new iteration point. But the methods of produce iterative step are different.

它们的共同目的都是在优化算法中求出每次迭代步的位移，从而求出新的迭代点，但是它们产生迭代步位移的途径不同。

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Their common purpose is to compute the displacement at each iteration step in any optimization algorithms and obtain a new iteration point. But the methods of produce iterative step are different.

它们的共同目的都是在优化算法中求出每次迭代步的位移，从而求出新的迭代点，但是它们产生迭代步位移的途径不同。

youdao