Import Geant4 0.0.0 source tree

2016-06-01 15:25:35 +02:00
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+// This code implementation is the intellectual property of
+// the RD44 GEANT4 collaboration.
+//
+// By copying, distributing or modifying the Program (or any work
+// based on the Program) you indicate your acceptance of this statement,
+// and all its terms.
+//
+// $Id: G4HelixExplicitEuler.cc,v 2.3 1998/11/13 14:30:21 japost Exp $
+// GEANT4 tag $Name: geant4-00 $
+//
+#include "G4HelixExplicitEuler.hh"
+#include "G4ThreeVector.hh"
+
+//
+//  Helix Explicit Euler: x_1 = x_0 + helix(h)
+//  with helix(h) being a helix piece of length h
+//  W.Wander <wwc@mit.edu> 12/09/97 
+//
+
+// -------------------------------------------------------------------------
+
+// most simple approach for solving linear differential equations.
+// Take the current derivative and add it to the current position.
+//
+
+void
+G4HelixExplicitEuler::DumbStepper( const G4double  yIn[],
+			      const G4double  dydx[],
+			      const G4double  h,
+			 	    G4double  yOut[])
+{
+  AdvanceHelix(yIn, dydx, h, yOut);
+
+  // NormaliseTangentVector( yOut );  // this could harm more than it helps 
+  return ;
+}