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The normwise structured backward error of an approximate eigen-pair is defined and its explicit formula is given.
给出一类周期特征值问题的向后误差分析，定义了特征对的范数型结构向后误差，并给出了显式表达式。
An improved Backward Error Propagation Algorithm used as neural network controllers to control a nonlinear system is presented in this paper.
对非线性系统神经网络控制器提出了一种改进的误差反向传播算法。
Detect when the file breaks backward-compatibility and report an error.
在文件破坏向后兼容性时，应该能够检测并报告错误。
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