Over the years I have developed a collection of original algorithms in order to provide reusable code that can be used in multiple applications. Some of these algorithms were written in procedural languages as long as 25 years ago for use in my research and teaching. They have since been put into an object framework and rewritten in C++. The most powerful of these algorithms is a proprietary decision support engine, a collection of C++ matrix classes that incorporate the rules of matrix algebra and — via operator overloading— allow C++ programmers to perform complex matrix operations using simple notation. The applications shown on this page give a demonstration of these algorithms, some of which have also been used in client applications.

Billable Hours, customizable client billing system for consulting firms, accounting firms, law firms and other entities that bill professional services by the hour. It permits consultants to "punch in" and "punch out"; calculates periodic totals for separate projects and clients; tracks expenses by consultant, project and client; generates and prints billing statements and reports; provides four levels of security; ages accounts; calculates discounts for early payment; and formats, prints, and emails statements. Now available for free download.

TLPWin linear optimization software, a general purpose linear programming application capable of solving integer and mixed integer as well as real-valued problems. Linear programming can be used to solve a wide variety of resource allocation and planning problems, and the technology at the core of TLPWin can be adapted and customized to fit a client's particular needs. This version, which features an intuitive, easy-to-understand user interface, is available for free download on the Downloads page.

TransPlan route optimization software, which permits a user to derive an optimal shipping schedule for moving units of a product from multiple sources to multiple destinations. TransPlan uses a traditional transportation algorithm, modified by an efficient labeling rule, and employs the modified distribution method to determine the best routes to introduce into the solution. It can also be used to solve assignment and shortest-route problems, and the technology that drives the software can be adapted and customized to fit a client's special needs. This version has an intuitive user interface and is available for free download on the Downloads page.

Century 3.12 event management system, which keeps track of registrants, volunteers and community contacts, and generates mailing labels, registration lists and other reports for cycling events. To get the latest release, go to the Downloads page.

WinBreaker file splitting software for MS Windows, which breaks up flat sequential data files into separate table-like files for importing into relational databases. WinBreaker is available for free download on the Downloads page.

CashMan account management software, which manages multiple deposit and credit card accounts, facilitates interaccount transactions, allows users to access their accounts via their banks' and card issuers' websites, and permits users to easily query their accounts and print user-designed reports.

A suite of JavaScript real estate financing calculators that make it easy to calculate monthly payments on mortgage loans, calculate and compare true annual percentage rates on new loans and mortgage refinancings, and determine an affordable house price given downpayment and monthly payment constraints. Any of these calculators can be localized and customized for real estate websites. This suite can be accessed on the Calculators page of this website.

A set of custom edit controls for Embarcadero's (formerly Borland) C++ Builder 6.0 application development software designed to minimize errors while entering certain kinds of data. These controls, which developers can install onto the components palette of the C++ Builder IDE using the provided component installation program, are available for download from the Downloads page of this website or from from the "Code Central" page of the Embarcadero Developer Network website.