File Exchange Pick of the Week

September 7th, 2005

Sudoku!

Have you heard of Sudoku puzzles? I hadn't until a few weeks ago, when a friend of mine was solving ones from the Boston Globe in the morning. For those not in the know, Sudoku are number puzzles that combine small integers (1..9) with a grid reminiscent of crossword puzzles. I've always enjoyed crossword puzzles, but I'm much more comfortable with numbers than words, so I love Sudoku. Enough about me, on to this week's pick. Stefan Bleeck programmed Sudoku into MATLAB. He did a great job, and added a lot of value to just doing puzzles in the paper. First of all, I don't need to wait until tomorrow's paper to get a new puzzle. Stefan also put in hints that help out when I'm feeling a bit lazy. Run this through the MATLAB Compiler, and I think Stefan could give FreeScale and Solitaire a run for their money. The best thing is that I can pretend I'm working when I do these puzzles, since I'm using MATLAB.

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Bob, Brett & Jiro share their favorite user-contributed submissions from the File Exchange.

  • Zach: Hi Doug and Les, I didn’t have a lot of time to mess with this, but I did find a work-around. I plotted...
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  • Les: @Zach This isn’t exactly what you are looking for but at least it puts all three parameters on the same...
  • Zach: Thanks for your suggestions Doug. I’ll give that a shot and see what happens. I’ve seen many of...
  • Doug: @Zach, I would say to use plotYYY, because that is close to what you want, but using depth as Y makes sense....
  • Doug: @Teja, I think this will work: http://www.mathworks .com/access/helpdesk /help/techdoc/ref...
  • Gify: merry christmas :) nice christmas tree! Regards, Janet Gify
  • Teja: Dear Doug Is there anyway to plot a surface from nonuniform data without meshgrid and griddata? Basically i...
  • Zach: I’m working with geophysical data, so I’d like to produce a depth profile. The y-axis would be...
  • Doug: @Ashok First, please do not use variable names that are MATLAB commands (std and mean). Second, p(j) should be...

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