I have found resources to download these types of calculators to use on a PC as well as handheld devices such as PALM etc...But do not want to purchase/obtain software or multifunctional devices such as the PALM to 'subnet in the field' so to speak. What I'm trying to find is a physical calculator either dedicated to this task or has it as a part of its core capabilities such as a scientific calculator. I've Ebay'd and Google'd this without much luck. Thanks for your suggested product(s) and time.
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