Based on analysing characteristics of error curved surface of the network, the authors have advanced the rapid BP algorithm, which can greatly raise the learning speed.
通过分析网络误差曲面特征，提出了快速BP算法，它可以大幅度地提高学习速度。
Theoretical error of curved surface by nc processing is analyzed based on the principle of nc processing of curved surface.
从曲面的数控加工原理出发，分析了曲面数控加工的理论误差。
The paraboloid of revolution is taken as an example to progress the study, derivation, error analysis and data processing of the five axes machining for space curved surface.
以旋转抛物面为例对空间曲面的五轴加工进行分析和数学推导，并对其进行误差分析和数据处理。
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