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Good graphing calculator for the professional?

metroplex

Golden Member
In HS, I cut my teeth on the TI-82, then worked up to a TI-83 (standard issue in HS) and bought a TI-86 my junior year in HS. I then upgraded to a TI-89 midway through college and now I'm an Electrical Engineering going back for my MSEE degree.

I'm thinking about getting a new and updated graphing calculator for professional work. Does anyone have any suggestions?

I really LOVE the units feature of the TI-89 as well as how it treats variables as variables. The TI-89 is really antiquated in the respect it must evaluate everything and has limited units conversions.
 
TI-89 does everything I could ever dream it to do as well. AFAIK its the best TI has made so far, besides the 92 which is actually older.
 
if I ever need a graphic calculator to do something......










.... oh thats right... I make SURE I don't need a graphic calculator to do anything. I don't understand how you guys do it...
 
The TI-86 and TI-89 have replaced all but 1 "scientific" calculator in my daily usage.

What do you think of the TI-89 Titanium? Do I need any of the extras? I did not like the fact my TI-89 has an exposed LCD screen but then again laptops have exposed LCD screens (there's no clear plastic cover ala TI-82-86).
 
AFAIK the titanium just adds extra link ports of some sort so teachers can have students create a LAN of sorts with their calculators, and the students screens show the same thing as the teachers screen, stuff like that. Nothing really useful.

I have never had a problem with the screen being exposed.
 
For a professional engineer I'm not sure a graphing calculator is the route to go. Since you will need to document your calculations it probably makes more sense to look into graphing software for your PC such as MathCad or similar.
 
Originally posted by: acemcmac
if I ever need a graphic calculator to do something......










.... oh thats right... I make SURE I don't need a graphic calculator to do anything. I don't understand how you guys do it...

A graphing calculator can speed up the simple work you need to do, to do a much more advanced problem.

If you already know how to do derivatives, and there are a bunch of relatively simple derivatives in a problem, why not just throw them into the calculator so you can be on your way?
 
MAPLE for symbolic math.
Matlab for most engineering applications.

A TI89 is the most useful thing you'll get out of a handheld device. You need PC software to do 'real' tasks (i.e matlab)
 
i do all that math on the computer nowadays. matlab, maple, mathematica. besides, i need to document the work and sometimes repeat it over and over again. much easier when you have a script than writing those calculator programs. i
 
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