nnmath.h

很经典的神经网络源程序,希望大家多多交流

/*
*-----------------------------------------------------------------------------
*	file:		nnmath.h
*	desc:		nnmath.c header
*	by:			patrick ko
*	date:		2 aug 1991
*-----------------------------------------------------------------------------
*/

#define	sigmoid( netpj )	(1.0 / (1.0 + exp(-1.0 * (netpj))))