00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // 00027 // $Id: G4ErrorMag_UsualEqRhs.hh 69786 2013-05-15 09:38:51Z gcosmo $ 00028 // 00029 // 00030 // -------------------------------------------------------------------- 00031 // GEANT 4 class header file 00032 // -------------------------------------------------------------------- 00033 // 00034 // Class description: 00035 // 00036 // Serves to reverse the magnetic field when propagation is backwards 00037 // for error propagation. 00038 00039 // History: 00040 // - Created. P. Arce, September 2004 00041 // -------------------------------------------------------------------- 00042 00043 #ifndef G4ErrorMag_UsualEqRhs_hh 00044 #define G4ErrorMag_UsualEqRhs_hh 00045 00046 #include "G4Mag_UsualEqRhs.hh" 00047 #include "G4MagneticField.hh" 00048 00049 class G4ErrorMag_UsualEqRhs : public G4Mag_UsualEqRhs 00050 { 00051 public: // with description 00052 00053 G4ErrorMag_UsualEqRhs( G4MagneticField* MagField ); 00054 ~G4ErrorMag_UsualEqRhs(); 00055 00056 void EvaluateRhsGivenB( const G4double y[], 00057 const G4double B[3], 00058 G4double dydx[] ) const; 00059 // Reverses dedx if propagation is backwards 00060 }; 00061 00062 #endif /* G4MAG_USUAL_EQRHS */