PhD, Probability and Statistics, Michigan State, 1969. Worked for Bell Laboratories, Mathematica, Schlumberger, and Microsoft. Co-founded and sold mobile applications company. Founded and still run Docent Press, publishing books in the history of mathematics and computing. Docent at the Boston Athenaeum. Granted 50+ patents.
Current research areas:
Mathematical practitioners in antebellum New England, machine recognition of handwritten documents, and Schinzel's hypothesis H.