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Simultaneous Equation Solver FLASH App
Posted by Eric on 19 November 2001, 21:59 GMT
TI has released a new FLASH application: Simultaneous Equation Solver for the TI-89 and TI-92+ (click link to login, click again to view page). Basically, it's a little application for you lazy types who don't want to use solve() or rref() for some odd reason. It's free, so go check it out. Thanks to the hordes who emailed me with the news.
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Re: Simultaneous Equation Solver FLASH App
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bdesham 
(Web Page)
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I already wrote a BASIC program for the 89 to do this- put in a matrix of coefficients, and it gives you the solution, formatted pretty and all.
Why does TI keep releasing apps that don't do anything the calculator doesn't already?
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19 November 2001, 22:46 GMT
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Re: Simultaneous Equation Solver FLASH App
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Bennett Kalafut
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<RANT>
More of the same BS from the eunuuchs at TI. This may be OT but (and those who followed my posts when I used to frequent this site know that this sentiment has been building for some time) the tail has really come to wag the dog at that company--the bean counters and useless management types must be directing the calculator division.
It smells like this program was written for technophobic grade-school algebra teachers. A really dumbed down front end for rref() is all this is. But then again the entire calculator division at TI has targeted itself at this market--educators as opposed to calculator users!
The website has become virtually useless. Their machines are worse. The 89 is a powerful multipurpose machine with a killer CAS and the potential for expandability ad nauseum. There were many far more useful things TI could have developed...integral transforms, a real 3-d engine, a vector calculus toolbox, etc, etc. I doubt I was the only user ever to harass them with my feature requests.
HP, on the other hand (that is until the recent suspension of development) listened to its users. Heck, they even hired them to do the HP48+ and the HP49. Now they dominate the market of technical professionals. With the 89 TI could have at least made inroads into that market, but they castrated the machine at birth.
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When I got into New Orleans this August my calculator (along with other things, incl about $1000 of hard-earned cash) were stolen from my vehicle in overnight parking. I gave it a lot of thought, and decided that I was going to replace my 89 with an HP49 (insurance let me get away with it--I got one dirt cheap). Turns out the thing, new in the package, didn't work (it would not shut off).
I finally recieved the replacement today (HP suffers from their own version of fubar, mostly having to do with old vs new 49s)
This machine is wonderful! Many of the feature requests I put in for the 89 are implemented, and the HP user community writes more useful math and science software. (Needless to say I am no longer writing 89 math software...)
My recommendation for those who are tired of TI's overpowered educational devices: vote with your feet and your money and buy HPs. Collegiate or higher-level math, engineering, and science students may be nowhere near the majority of TI's users, and are possibly not even the majority of 89 users, but with regard to the 89 we should be a sizable enough market for TI to take notice. It's time that some competiton was put back into the high-end calculator market.
Whew! That was a rant!
-Ben Kalafut
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28 November 2001, 07:43 GMT
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