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G4HelixHeum.hh
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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 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