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I have used this calculator extensively in my university level calculus course and the various features it has make the course much easier. You can solve integrals and systems of equations directly on the calculator. There is some sticker residue and scuffs, but for the price, you can't complain. A bit of rubbing alcohol gets the stickers off.
Verified purchase: Yes | Condition: Pre-owned
This thing is amazing--it will solve problems right from the math book. It has capabilities I will probably never use. Being used to the old HP-48 I am finding it difficult to do operations that were easy on the old HP. This is a matter of getting used to it. The HP had a great book that explained everything. Documentation on this thing is poor to very poor. Like all of these devices there are features that are inexplicably perverse. It seems you can store a function under a name, but you can't retrieve or edit it. I've looked high and low and tried everything I can think of. A variable, yes, Function, no. There are ways around this though. If you want something that will do algebra problems for you, this is it.
Verified purchase: Yes | Condition: Pre-owned
Got what I wanted at a price I could afford. An older unit, but not so old it is not useful. I like it. I need to learn how to use all its features. A very powerful calculator. In great condition.
Verified purchase: No
Husband is a Journeyman Electrician and in school to get associates degree in Industrial Electrical Maintenance. This has been great for his job and school! Does take a little time to learn how to use.
Verified purchase: Yes | Condition: Refurbished
My daughter needed a TI-84 for school. I looked for a used one and luckily found these. The unit is complete with CD cables and 2 screens. It works perfectly. I certainly got more for less with this purchase. A++++++++++
Verified purchase: Yes | Condition: Pre-owned
