使用分段逼近(piecewise approximation)算法计算超越函数,以神经网络中最常用的双曲正切型(tanh)传输函数为例来分析逼近精度同分段数、有限字长之间的关系。 -Using segmented approximation (piecewise approximation) algorithm for computing transcendental functions, to the most commonly used neural network type hyper