Title: Math illiteracy made possible by Ti89.
Review: If you buy this calculator your going to cheat your self out of learning the beauty of mathmatics. I purchased the Ti89 a year ago having used a Ti85 for the last 5 years. I am currently a chemical engineering student taking Vector Calculus and Numerical Analysis II along with Thermodynamics. For the past year I have become so dependent on this calculator that I actually carry a package of backup batteries in my backpack. I feel that I'm cheating on ever test that I take and I'm getting scared that my teachers are becoming suspicious of my Ti89 crutch through a lack of visable work.
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