I do not have a calculator that does matrix stuff that would be great for my classes this semester. I don't want to spend $100+ on a graphing calculator since I use matlab at home strictly now. Im looking to solve simultaneous equations, matrix operations like det,eigen,mult,...etc Any help would be great!  PhysOrg.com science news on PhysOrg.com >> Leading 3-D printer firms to merge in$403M deal (Update)>> LA to give every student an iPad; $30M order>> CIA faulted for choosing Amazon over IBM on cloud contract  Blog Entries: 3 The TI line (83, 89, etc.) handles matrix math just fine, and some of them go for under 100.  Recognitions: Gold Member My Ti-89 is still a classic. The best you can get for the money. I wont bother with anything below Ti-89 ## cheap scientific calculator that does matrix operations I was kind of aiming towards$20-30...

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 Quote by bassplayer142 I was kind of aiming towards $20-30... ebay? I haven't seen a graphing calculater under$80 in years, and I don't think non-graphing ones handle matrices.
 uhhg, maybe I can borrow one. Thanks everyone.
 I just bought a TI-86 on craigslist for \$30. It didn't seem like that was an exceptionally low price or anything, so you shouldn't have a problem finding one in your price range.
 See online matrix calculator http://calculator-online.org/s/matrix/
 TI-89 is good but price differs for place to place better to get an used one it would be better
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 There is an excellent software calculator called Mathwizard that does Matrices,algebra,calculus,scientific calculator and plot graph.check it out. you can also find mobile applications that does matrices,algebra,calculus,differential equations , and plot graphs

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