Geant4_10
G4HelixHeum.hh
Go to the documentation of this file.
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
25 //
26 //
27 // $Id: G4HelixHeum.hh 66356 2012-12-18 09:02:32Z gcosmo $
28 //
29 //
30 // class G4HelixHeum
31 //
32 // Class description:
33 //
34 // Simple Heum stepper for magnetic field:
35 // x_1 = x_0 +
36 // h * 1/4 * dx(t0,x0) +
37 // 3/4 * dx(t0+2/3*h, x0+2/3*h*(dx(t0+h/3,x0+h/3*dx(t0,x0))))
38 // Third order solver.
39 
40 // History:
41 // - Created. W.Wander <wwc@mit.edu>, 03/11/98
42 // -------------------------------------------------------------------
43 
44 #ifndef G4HELIXHEUM_HH
45 #define G4HELIXHEUM_HH
46 
47 #include "G4MagHelicalStepper.hh"
48 
50 {
51 
52  public: // with description
53 
55  : G4MagHelicalStepper(EqRhs) {}
56 
58 
59  void DumbStepper( const G4double y[],
60  G4ThreeVector Bfld,
61  G4double h,
62  G4double yout[]);
63 
64  public: // without description
65 
66  G4int IntegratorOrder() const { return 2; }
67 };
68 
69 #endif /* G4HELIXHEUM_HH */
int G4int
Definition: G4Types.hh:78
G4int IntegratorOrder() const
Definition: G4HelixHeum.hh:66
Double_t y
Definition: plot.C:279
double G4double
Definition: G4Types.hh:76
G4HelixHeum(G4Mag_EqRhs *EqRhs)
Definition: G4HelixHeum.hh:54
void DumbStepper(const G4double y[], G4ThreeVector Bfld, G4double h, G4double yout[])
Definition: G4HelixHeum.cc:44