/*------------------------------------------------------------------------*/
/*
     Author: R. Timothy Edwards
     Date:   March 29, 1991 -- April 12, 1991 (Version 0.0)
     Revisions:  Version 1.0 completed April 25, 1991 (I/O graphs added)
     	 	 Version 2.0 completed 		      (Makefile version)
*/
/*------------------------------------------------------------------------*/
/*   Global variables: Functions                              		  */
/*------------------------------------------------------------------------*/

extern void (*function)();             /* Global function pointer      */
extern void (*drawtype)();             /* Global function pointer      */
extern void (*learntype)();            /* Pointer to training algorithm     */
extern float (*Sigmoid)();		/* Pointer to tanh or 1/1+e...       */
extern float (*DSig)();		/* Pointer to derivative of above.   */
extern float (*Limiter)();        /* Pointer to hard limiter function  */

extern float DTanh(), Expon(), DExpon(), Sin(), DSin(), Signum(), Binary();
extern float Tanh();

extern void MenuSelect(), QuitSelect(), ResetWeights();
extern void SubMenu(), LoadWeight(), GetText(), Ok(), DisableDraw();
extern void LoadWFile(), LoadTFile(), LoadTrain(), BreakTrain();
extern void TConst(), SelTConst(), ShowNet(), SetNodes();
extern void SetUpdate(), SetEpsilon(), NetTrain(), SetStep();
extern void SelUdate(), SelEps(), DrawNet(), DrawNone(), NormWeights();
extern void TDNNTrain(), SetNodes(), SetLayers(), SelectNod();
extern void SelectLay(), SetTaps(), SelectTap(), SetTitle();
extern void SelTitle(), SaveWFile(), SaveWeight(), BipAct(), BinAct();
extern void SinAct(), SetRecur(), SetBounds(), SelBounds();
extern void NetRun(), Train2Samp(), DrawActive(), ShowActive();
extern void FlushTaps(), DrawGraph(), LoadSamp(), LoadSFile();
extern void SelTProg(), SelSProg(), RunTrain(), RunSamp(), LastPatMode();
extern void BinHL(), BipHL(), SetRanMag(), SelRandom(), SelfOrg();