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  1.    #1  
    I am getting a Visor and was wondering if there are any good graphing calculator programs out there. I've found one called HGraph made by hexdump (http://www.hexdump.com/) that looked pretty good. I need one for school and since I'm getting a Visor I thought I could just use that rather than buy a separate calculator. How do software graphing calculators compare to hardware ones? Thanks for your help.
  2. #2  
    I have been searching all over the web for a calculator that has the same functionality as a TI calculator. It seems like it shouldn't be a problem to write one because the Palm has so much more memory and processing power, but I haven't found anything suitable yet. I would pay good money for a TI springboard or something to that effect. The HGraph program is a piece of junk. It graphs equations all right, but you cannot find intersection points, zeros, or anything else of interest to a math student. I emailed them to ask if there was a way to do it or if they were planning to implement it and they replied "just touch the screen where they look like they intersect." That is unacceptable. If HGraph had TI functionality, I would plunk down my money in an instant, but it doesn't. The calculator I have seen with the most potential is CplxCalPro (see www.adacs.com). The author upgrades constantly and is willing to listen to user input. He has begun to implement graphing capabilities, so I hope that he continues to upgrade. The best thing is that if you write a decent program for it, you get the registration code for free!! Well that is more than my two cents, but I hope someone else has found a decent calculator and will keep this thread alive.

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