Section 1 About Me

  • First BASIC program, 1969

  • PhD in Mathematics, Univ. of Illinois, 1984

  • \(\TeX\)/\(\LaTeX\) user since mid-1980's

  • Roughly 15 research articles, 80's and 90's

  • Gopher site, approx. 1992

  • Open source linear algebra textbook, initiated 2004

  • Sage software developer, 2008–present

  • 36 years teaching mathematics, strictly undergraduates

  • Know a little about each of many things