After studying algebraic geometry, algebraic topology and category theory, after teaching mathematics and computer science in university and high school, after studying bioinformatics and implementing image analysis algorithms in a biotech start-up, I have since been working in finance, in London, Tōkyō and Hong Kong.
My preferred programming languages are R and Perl, but I try to use the best language and tools to solve the problem at hand. I also like to learn more marginal languages, such as Haskell or Oz/Mozart. I am interested in human languages, too.
Here is a selection of my answers.
Q&A for professional and enthusiast programmers
Q&A for people interested in statistics, machine learning, data analysis, data mining, and data visualization
Q&A for finance professionals and academics
Q&A for people studying math at any level and professionals in related fields
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Q&A for professional programmers interested in conceptual questions about software development