应用目前流行的信赖域算法，并用带有信赖域技巧的截断共扼梯度法来解信赖域子问题。

We apply the popular trust region algorithm and truncated conjugate gradient algorithm with trust region skills to solve trust region subproblems.

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现在，点击缩略图就当前的梯度，梯度编辑窗口应该流行起来。

Now, click on the thumbnail of the current gradient, a gradient editing window should pop up.

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