12/24/09: New write up for the Routing add-in
12/3/09: Major revisions in the Routing add-in and the associated Op_Sequencing add-in
11/4/09: Added Log Gambler model to the DP Examples section.
11/3/09: Added Resource problems to the DP Data add-in.
6/30/09: Added documentation for Inventory models to the DP Data add-in.
6/5/09: Added Inventory models to the DP Data add-in.
5/5/09: Extensively modified documentation for Dynamic Programming: DP Examples, DP Data, DP Models and DP Solver.
Put up new versions of the associated add-ins and demonstration files.
4/27/09: Removed size restriction from TeachLP add-in..
2/19/09: Added documentation for Dynamic Programming: DP Examples, DP Data, DP Models and DP Solver. Modified DP add-ins.
1/27/09: Added three add-ins for Dynamic Programming to the Optimization collection: DP Data, DP Models and DP Solver. Changed the Markov Analysis and Add ORMM add-in.
6/24/08: Added new Section on the Markov Collection. Began documentation for the Markov Data add-in. Updated the add-ins in the Markov Collection.
6/16/08: Complete revision of the Markov Models, Markov Analysis, and Markov Decision Process add-ins. Documentation has not been updated at this time.
4/1/08: Created a Markov Decision Process add-in.
4/1/08: Replaced the Stochastic Analysis add-in with the Markov Analysis add-in.
4/1/08: Replaced the Stochastic Models add-in with the Markov Models add-in.
4/1/08: Changed the ORMM Control to accommodate the changes.
3/20/08: A new section was added to support the Markov Decision Process model.
2/26/08: Added a new Routing add-in for the OM/IE collection and added a new section on Vehicle Routing

1/22/08: Excel 2008 does not support VBA and the add-ins will not work with Excel 2008.
12/20/07: Added a Multiple Vehicle Routing option to the Combinatorics add-in.
12/10/07: Extensive modification of LP/IP add-in to allow direct solution of LP/IP models with side problems.
12/10/07: Elimination of all problem size limitations for the LP/IP add-in except the number of IP variables.
12/10/07: Reorganize and improve the Stochastic Programming section.
11/27/07: Fixed an error in the Project Management add-in
11/4/07: Paul Jensen was awarded the 2007 INFORMS Prize for the Teaching of ORMS Practice.
10/19/07: Extensively modified the section on the Teach Nonlinear Programming Add-in.
10/17/07: Extensively modified the section on the Teach Dynamic Programming Add-in.
9/7/07: Added a Fractal model to the Simulation add-in and improved the instructions.
8/21/07: Extensively revised the Project add-in and the instructions.
7/05/07: I added a new Template section.
7/03/07: I changed the add-ins to provide consistent coloring.
6/30/07: I changed the add-ins for Excel 2007. Get the new versions from the add-in page.
6/30/07: I am using a new zip program that should make downloading easier for Windows users.
5/10/07: Art and Operations Research in Second Life (SL)
5/09/07: Page hits exceed 100,000. See the Visit Counts page.
2/25/07: Replaced the Portfolio add-in with a new Capital Budgeting add-in.
2/20/07: Corrections to the P&G Game. Requires the latest Simulation add-in.
1/27/07: Important: Corrections to the LP/IP and Portfolio add-ins. Download new versions.
1/20/07: See the new Production Game
1/12/07: See the new Inventory Control Game12/28/06: See the new P&G Game (Production Control Simulation)