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Title: HP 12C Platinum Anniversary is a disappointment
Review: The build of the Platinum Anniversary 12C itself felt good. However,try this operation (i.e. multiplying -10 by 2) by punching keys in thefollowing 3 sequences (in the RPN mode):1) 10 ENTER CHS 2 [X] gives 20.00 and not -20.00.2) 10 CHS ENTER 2 [X] gives the correct answer of -20.00.3) 10 ENTER CHS ENTER 2 [X] gives the correct answer of -20.00.I verified with John Tirone (the author of the book "Professional RealEstate Problem Solving Using the HP12C") that if the same keysequences are punched on the black/gold 12C, it consistently gives thecorrect answer of -20.00.Needless to say, I returned the Platinum Anniversary 12C for thisreason and purchased the black/gold 12C instead.
