//該程序利用BP網絡解決了XOR問題
//通過改變學習因子可以加快程序達到預定的精度
#include?
#include?
#include?
#include?
#include?
#include?
?
#define?nInputnodes???3??????????/*輸入層單元數**/
#define?nHiddennodes??5??????????/*隱層單元數***/
#define?nOutputnodes??1??????????/*輸出層單元數*/
#define?nPatterns?????4??????????/*訓練集個數**/

#define?Eta???0.6????????????????/**學習因子***/
#define?Beta??0.5????????????????/****系數****/
#define?Delta?0.0005?????????????/****誤差***/
int????RandomSequence[nPatterns];

float?Midf1（float?x）
{?float?sum;
??x=x*Beta;
??sum=（exp（x）-exp（-x））/（exp（x）+exp（-x））;
??return（sum）;
}


main（）
{
	int?ijk;
	FILE?*in*out;
	double?RandomSgn;
	double?sum[nPatterns]Hm[nPatterns]midvalue[nPatterns][nHiddennodes]differ;
	double?mid1[nP

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????4030??2004-10-17?18:24??BP\BP.c

?????文件???????4340??2005-05-04?11:18??BP\BP.dsp

?????文件????????527??2005-05-03?14:57??BP\BP.dsw

?????文件????????238??2005-07-17?18:40??BP\BP.plg

?????文件????????480??2006-03-18?11:15??BP\outcome.txt

?????文件?????????66??2004-10-17?17:38??BP\pattern.txt

?????文件?????147456??2009-03-21?21:47??BP\Debug\BP.exe

?????文件?????380928??2005-05-04?17:49??BP\Debug\vc60.pdb

?????文件???????4328??2009-03-21?21:47??BP\Debug\BP.res

?????文件??????10018??2009-03-21?21:47??BP\Debug\BuildLog.htm

?????文件????????660??2009-03-21?21:47??BP\Debug\BP.exe.embed.manifest

?????文件?????692224??2009-03-21?21:47??BP\Debug\vc80.pdb

?????文件?????330016??2009-03-21?21:47??BP\Debug\StdAfx.obj

?????文件??????40154??2009-03-21?21:47??BP\Debug\ModalDlg.obj

?????文件??????26640??2009-03-21?21:47??BP\Debug\InputDlg.obj

?????文件??????38142??2009-03-21?21:47??BP\Debug\BPDlg.obj

?????文件??????18960??2009-03-21?21:47??BP\Debug\BP.obj

?????文件????????724??2009-03-21?21:47??BP\Debug\BP.exe.embed.manifest.res

?????文件????3468288??2009-03-21?21:47??BP\Debug\BP.pdb

?????文件????????625??2009-03-21?21:47??BP\Debug\BP.exe.intermediate.manifest

?????文件?????????60??2009-03-21?21:47??BP\Debug\mt.dep

?????文件??????55808??2005-07-18?20:41??BP\BP.opt

?????文件??????38084??2005-05-04?16:21??BP\BP.APS

?????文件???????3031??2005-07-18?20:41??BP\BP.clw

?????文件???????2007??2005-05-03?14:57??BP\BP.cpp

?????文件???????1280??2005-05-03?14:57??BP\BP.h

?????文件??????10988??2005-05-04?16:21??BP\BP.rc

?????文件???????4202??2005-05-03?15:40??BP\BPDlg.cpp

?????文件???????1321??2005-05-03?15:30??BP\BPDlg.h

?????文件???????1585??2005-05-04?15:36??BP\InputDlg.cpp

............此處省略20個文件信息