ODE engine
The VBA source code in the Excel 3DOF / R.L. McCoy CFD based trajectory model includes an ODE engine based on a Bulirsch-Stoer variable step length numerical integration method for rational functions.
Hans Cronander
Hans Cronander. All rights reserved. Reproduction in whole or in part without permission prohibited. Copyright Hans Cronander™ ©2005.
Ballistics and Stock Options at Cronander's free Excel models by Hans Cronander
The 4 Rules of Firearms Safety:
1. Handle all firearms as if they were loaded.
2. Never point the gun at anything you're not willing to destroy.
3. Keep your finger off the trigger and out of the trigger guard until you have made the decision to fire the weapon.
4. Know your target, and know what is beyond the target.