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John D'Errico


Retired

3,718 total contributions since 2006

Mainly retired from Eastman Kodak. (Of course, Kodak itself is now semi-retired. I don't think I had any influence in that.) I still write MATLAB code as I find something interesting, and I do attempt to write new tools to put on the File Exchange when I think I can make a contribution.

However, I DON'T answer direct e-mail questions, and I do NOT do homework. In general, your homework is YOUR problem, not mine. Please do NOT e-mail me with your homework problems or student projects. If I was willing to answer your questions, I would very rapidly become overwhelmed, because one question is never just one simple question.

When I'm not doing something with MATLAB, you might find me playing bridge, either in the club or online on BBO.

Professional Interests: MATLAB, numerical analysis, mathematical modeling

Avocational interests: Bridge, woodworking, woodturning

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John D'Errico's Badges

  • Revival Level 3
  • 36 Month Streak
  • Thankful Level 4
  • Ace
  • Knowledgeable Level 4
  • First Answer
  • Promoter
  • Speed Demon
  • CUP Challenge Master
  • Creator
  • Commenter
  • Solver

John D'Errico's Badges

MATLAB Answers Badges

All
  • 36 Month Streak36 Month Streak
    20 Jul 2017
  • AceAce
    20 Jul 2017
  • Knowledgeable Level 4Knowledgeable Level 4
    20 Jul 2017
  • Thankful Level 4Thankful Level 4
    20 Jul 2017
  • Revival Level 3Revival Level 3
    22 Jan 2018
  • First AnswerFirst Answer
    20 Jul 2017

Cody Badges

All
  • PromoterPromoter
    13 Oct 2016
  • CommenterCommenter
    28 Jan 2012
  • SolverSolver
    28 Jan 2012
  • Speed DemonSpeed Demon
    28 Aug 2016
  • CreatorCreator
    22 Jul 2016
  • CUP Challenge MasterCUP Challenge Master
    21 Aug 2016