Geant4  10.01.p03
G4HelixExplicitEuler.hh
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27 // $Id: G4HelixExplicitEuler.hh 66356 2012-12-18 09:02:32Z gcosmo $
28 //
29 //
30 // class G4HelixExplicitEuler
31 //
32 // Class description:
33 //
34 // Helix Explicit Euler: x_1 = x_0 + helix(h)
35 // with helix(h) being a helix piece of length h.
36 // A simple approach for solving linear differential equations.
37 // Take the current derivative and add it to the current position.
38 
39 // History:
40 // - Created. W.Wander <wwc@mit.edu>, 12/09/97
41 // -------------------------------------------------------------------
42 
43 #ifndef G4HELIXEXPLICITEULER_HH
44 #define G4HELIXEXPLICITEULER_HH
45 
46 #include "G4MagHelicalStepper.hh"
47 
49 {
50  public: // with description
51 
53  : G4MagHelicalStepper(EqRhs) {}
54 
56  void Stepper( const G4double y[],
57  const G4double*,
58  G4double h,
59  G4double yout[],
60  G4double yerr[] );
61 
62  void DumbStepper( const G4double y[],
63  G4ThreeVector Bfld,
64  G4double h,
65  G4double yout[]);
66 
67  G4double DistChord() const;
68  public: // without description
69 
70  // DELETED RightHandSide( ) !!!!
71  // Replaced by MagFieldEvaluate( const G4double y[], G4double B[] )
72  // in G4HelicalStepper
73 
74  G4int IntegratorOrder() const { return 1; }
75 };
76 
77 #endif /* G4EXPLICITEULER_HH */
CLHEP::Hep3Vector G4ThreeVector
G4HelixExplicitEuler(G4Mag_EqRhs *EqRhs)
G4int IntegratorOrder() const
int G4int
Definition: G4Types.hh:78
G4double DistChord() const
void DumbStepper(const G4double y[], G4ThreeVector Bfld, G4double h, G4double yout[])
void Stepper(const G4double y[], const G4double *, G4double h, G4double yout[], G4double yerr[])
double G4double
Definition: G4Types.hh:76