| [831] | 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: G4ExplicitEuler.hh,v 1.9 2006/06/29 18:22:11 gunter Exp $
|
|---|
| [1337] | 28 | // GEANT4 tag $Name: geant4-09-04-beta-01 $
|
|---|
| [831] | 29 | //
|
|---|
| 30 | //
|
|---|
| 31 | // class G4ExplicitEuler
|
|---|
| 32 | //
|
|---|
| 33 | // Class description:
|
|---|
| 34 | //
|
|---|
| 35 | // Explicit Euler stepper for magnetic field: x_1 = x_0 + h * dx_0.
|
|---|
| 36 | // The most 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 | // - Adjusted for new Equation classes, J.Apostolakis 5/11/03
|
|---|
| 42 | // -------------------------------------------------------------------
|
|---|
| 43 |
|
|---|
| 44 | #ifndef G4EXPLICITEULER_HH
|
|---|
| 45 | #define G4EXPLICITEULER_HH
|
|---|
| 46 |
|
|---|
| 47 | #include "G4MagErrorStepper.hh"
|
|---|
| 48 |
|
|---|
| 49 | class G4ExplicitEuler : public G4MagErrorStepper
|
|---|
| 50 | {
|
|---|
| 51 |
|
|---|
| 52 | public: // with description
|
|---|
| 53 |
|
|---|
| 54 | G4ExplicitEuler(G4EquationOfMotion* EqRhs, G4int numberOfVariables = 6) ;
|
|---|
| 55 | ~G4ExplicitEuler();
|
|---|
| 56 |
|
|---|
| 57 | void DumbStepper( const G4double y[],
|
|---|
| 58 | const G4double dydx[],
|
|---|
| 59 | G4double h,
|
|---|
| 60 | G4double yout[]);
|
|---|
| 61 |
|
|---|
| 62 | public: // without description
|
|---|
| 63 |
|
|---|
| 64 | G4int IntegratorOrder() const { return 1; }
|
|---|
| 65 |
|
|---|
| 66 | };
|
|---|
| 67 |
|
|---|
| 68 | #endif /* G4EXPLICITEULER_HH */
|
|---|
