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>> 1 // This code implementation is the intellectual property of
>> 2 // the GEANT4 collaboration.
1 // 3 //
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15 // * use. Please see the license in the file <<
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17 // * <<
18 // * This code implementation is the result <<
19 // * technical work of the GEANT4 collaboratio <<
20 // * By using, copying, modifying or distri <<
21 // * any work based on the software) you ag <<
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24 // ******************************************* <<
25 // 7 //
26 // G4HelixImplicitEuler << 8 // $Id: G4HelixImplicitEuler.hh,v 1.2 1999/12/15 14:49:47 gunter Exp $
>> 9 // GEANT4 tag $Name: geant4-01-01 $
27 // 10 //
28 // Class description: <<
29 // 11 //
30 // Helix Implicit Euler stepper for magnetic << 12 // W. Wander <wwc@mit.edu> 03/11/98
31 // x_1 = x_0 + 1/2 * ( helix(h,t_0,x_0) <<
32 // + helix(h,t_0+h,x_ <<
33 // Second order solver. <<
34 // Take the current derivative and add it to <<
35 // Take the output and its derivative. Add th <<
36 // to form the final output. <<
37 13
38 // Author: W.Wander <wwc@mit.edu>, 03/11/1998 <<
39 // ------------------------------------------- <<
40 #ifndef G4HELIXIMPLICITEULER_HH 14 #ifndef G4HELIXIMPLICITEULER_HH
41 #define G4HELIXIMPLICITEULER_HH 15 #define G4HELIXIMPLICITEULER_HH
42 <<
43 #include "G4MagHelicalStepper.hh" 16 #include "G4MagHelicalStepper.hh"
44 17
45 class G4HelixImplicitEuler : public G4MagHelic << 18 class G4HelixImplicitEuler: public G4MagHelicalStepper
46 { 19 {
47 public: <<
48 20
49 G4HelixImplicitEuler(G4Mag_EqRhs *EqRhs); << 21 public:
50 ~G4HelixImplicitEuler() override; << 22 G4HelixImplicitEuler(G4Mag_EqRhs *EqRhs): G4MagHelicalStepper(EqRhs){};
>> 23 ~G4HelixImplicitEuler(){};
51 24
52 void DumbStepper( const G4double y[], << 25 void DumbStepper( const G4double y[],
53 G4ThreeVector Bfld << 26 const G4double dydx[],
54 G4double h, << 27 const G4double h,
55 G4double yout << 28 G4double yout[]);
56 29
57 inline G4int IntegratorOrder() const overr << 30 G4int IntegratorOrder() { return 2; };
58 }; 31 };
59 32
60 #endif << 33 #endif /* G4HELIXIMPLICITEULER_HH */
61 34