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Title: Gives me a headache...
Review: This guide does contain a lot of valuable information, but it is very poorly written - not a professional quality document - lengthy, wordy prose, long paragraphs, poorly organized. For some reason, these calculators are plagued with horrible documentation, no matter who writes it. Apparently, the assumption is that if you're smart enough to use them, you should be smart enough to figure them out. This is true - but it's time consuming and not worth it unless you REALLY need the functionality they provide. If you must use one of the advanced HP calculators, this pamplet may be of some help if it doesn't give you a headache - otherwise buy an HP 40GS, which is the best grapher on the market by a long shot and costs half the price of a 50G. 40GS comes with a great manual and is very intuitive to use and program.
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