Durable, good value, usability, universal
Doesn't have as many processes as the TI-89
When the topic of calculators comes up in the beginning of every math class and physics class, I can proudly say that I have the right one. I have used the TI-73 calculator from my 7th grade math all the way to my Calculus 2 class in college, and that is not limited to a couple of science classes...
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