I started university in physics and math, but moved to mathematical economics when I got interested in business. I worked for 35 years in banking, auditing, accounting and corporate finance until being volunteered to retire early. Along the way, I completed a graduate certificate in applied statistics and data analysis. I am comfortable programming in VBA, R and VB. I may learn C# when I have time. Now that I am retired, I can spend time investing and studying math and science. My math interests include number theory (prime numbers), operations research, applied statistics, computer programming, and applied math in general. My science interests include astronomy, orbital mechanics, fluid dynamics, physics and general chemistry. Basically a jack of all trades and a master of none.