diff --git a/EInAPI.h b/EInAPI.h
index 107f1bd..d6340b8 100644
--- a/EInAPI.h
+++ b/EInAPI.h
@@ -964,11 +964,13 @@ EIN_EXPORT BOOL __stdcall EgtSetCalcTool( const wchar_t* wsTool, const wchar_t*
 EIN_EXPORT BOOL __stdcall EgtGetCalcTool( wchar_t*& wsTool, wchar_t*& wsHead, int* pnExit) ;
 EIN_EXPORT BOOL __stdcall EgtGetCalcAngles( const double vtDirT[3], const double vtDirA[3],
                                             int* pnStat, double* pdAngA1, double* pdAngB1, double* pdAngA2, double* pdAngB2) ;
-EIN_EXPORT BOOL __stdcall EgtGetCalcPositions( const double ptP[3], double dAngA, double dAngB,
+EIN_EXPORT BOOL __stdcall EgtGetCalcAnglesEx( const double vtDirT[3], const double vtDirA[3],
+                                              int* pnStat, double*& vAngs1, double*& vAngs2, int* pnCount) ;
+EIN_EXPORT BOOL __stdcall EgtGetCalcPositions( const double ptP[3], int nCount, const double dAngs[],
                                                int* pnStat, double* pdX, double* pdY, double* pdZ) ;
-EIN_EXPORT BOOL __stdcall EgtGetCalcTipFromPositions( double dX, double dY, double dZ, double dAngA, double dAngB,
+EIN_EXPORT BOOL __stdcall EgtGetCalcTipFromPositions( double dX, double dY, double dZ, int nCount, const double dAngs[],
                                                       BOOL bBottom, double ptTip[3]) ;
-EIN_EXPORT BOOL __stdcall EgtGetCalcToolDirFromAngles( double dAngA, double dAngB, double vtDir[3]) ;
+EIN_EXPORT BOOL __stdcall EgtGetCalcToolDirFromAngles( int nCount, const double dAngs[], double vtDir[3]) ;
 EIN_EXPORT BOOL __stdcall EgtVerifyOutstroke( double dX, double dY, double dZ, double dAngA, double dAngB, int* pnStat) ;
 EIN_EXPORT BOOL __stdcall EgtGetOutstrokeInfo( wchar_t*& wsInfo) ;
 // Machine Move