pmntanh.m

来自「基于MATLAB的神经网络非线性系统辨识软件包.」· M 代码 · 共 8 行

function t=pmntanh(x)
% PMNTANH
% -------
% Fast hyperbolic tangent function to be used in
% neural networks instead of the tanh provided by MATLAB
t=1-2./(exp(2*x)+1);