Recent content by cwalken

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    Calculators Why is My HP RPN Operation Displaying Unexpected Results?

    HP strange RPN operation? I just find an odd behavior on my hp rpn operation. Can someone try the following sequence of entry and explain to me this strange behavior? Press 5 (any number will do). Press 'Enter' (this should duplicate 5 to x an y stacks) Press 'Enter' again (duplicate 5 again...