Newer TI-Nspire model or TI-89 titanium?

http://www.amazon.com/Texas-Instruments-N2CAS-CLM-2L1/dp/B003EK7O1G/ref=sr_1_8?s=electronics%26amp;ie=UTF8%26amp;qid=1276645183%26amp;sr=1-8





or





http://www.amazon.com/Texas-Instruments-TI-89-Ti-Titanium/dp/B0001EMLZ2/ref=sr_1_1?s=electronics%26amp;ie=UTF8%26amp;qid=1276647086%26amp;sr=1-1





Apparently, the "Nspire" is a relatively new model.





I am pursing an Economics major, so I expect these math classes:





Pre-calcus through Calculus 3


Differential Equations


Linear Algebra


etc.





Probably not topology or classes like that; mostly graph-math, I presume.





Thanks for taking the time|||TI-89 Titanium





Both are pretty much identical, and in terms of functionality the TI-Nspire has nothing over the TI-89. The TI-89 has a better look and feel - It's like the TI-83 for calculus. It does derivatives, integrals, vectors, and symbolic manipulation (can solve equations). I got mine back in 2004 and it has been an invaluable tool through high school and college. Not all professors allow calculators though so be sure to check. It will be extremely useful for all the courses you listed.


Are you sure you need to take all those math courses for economics? At my school they only needed stats and calc 1, but I guess every school is different. For math, physics, or engineering majors I would highly recommend the TI-89; I'm not sure about economics.