Mathematica 7 Home Edition is the real thing (minus 64 bit capability) as far as I can tell with what amounts to a hobbyist only license.   The commercial license is well over $2000, but for $295 you can play with math in the privacy of your own home as long as it is only for hobbyist purposes. Really neat stuff.

... math for centuries. But one man made recreational math fun and has been inspiring legions of followers for decades. His name ... . This mathemagician has been transforming frightening formulas into fun. But recreational math doesn’t just fill free time. It ... and even informs real science. The Zebra Puzzle--a famous math puzzle The following puzzle is a fine example of a detective math puzzle. ...

... isn't easy. Here's how some folks are doing it successfully. Recreational probability. The site Book of Odds presents the ... commercial sites.This is a web property I wish I'd thought of myself. Recreational mathematics. The amazing Martin Gardner is being recognized for ... less single-handedly renewed and nurtured interest in recreational mathematics in North America for a large part of ...

... Proust…all of them. So what’s the secret? Benefits of Solving Math Puzzles November-10-09, 11:26 ... good learning tools? In this lesson, students try to solve math puzzles and explain the strategies used to come to the solutions. Students will ... their process. They will come away with a broader view of “math” and see its recreational capacity. Your Health | Waving goodbye to ...

The year was 1956, Martin Gardner who had never taken a math course since high school left his job with Humpty Dumpty and ... books! He has probably turned more people on to the joy of math than anyone else! Why? Because he makes math fun! "He has turned thousands ... . Learn more about Gardner in the NYT article. See also, some fun recreational math activities.What Can We Learn From Martin Gardner? ...

... . I have a number of his books on my Wish List, including this latest one. I love the fact that he's probably the world's best-known popularizer of math and math puzzles -- certainly recreational math -- and when he started writing his columns for Scientific American he hadn't taken a math course beyond highschool!