HP 35s Stack: Bug? - Hewlett Packard

This is a discussion on HP 35s Stack: Bug? - Hewlett Packard ; Hello, I just bought an HP 35s. The stack seems to be behaving oddly, and I'm not sure if it's operator error or a bad calculator. The stack seems to be double-entering my numbers. For instance, 1 2 produces a ...

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  1. HP 35s Stack: Bug?

    Hello,

    I just bought an HP 35s. The stack seems to be behaving oddly, and I'm not
    sure if it's operator error or a bad calculator.

    The stack seems to be double-entering my numbers. For instance, 1 2
    produces a stack of 2 - 2 - 1. Entering 1 2 3
    4 produces a stack of 4 - 4 - 3 -2, not 4 - 3 - 2 - 1 as I
    would have expected.

    Am I just doing something wrong?

    D



  2. Re: HP 35s Stack: Bug?

    > Am I just doing something wrong?

    RPL is not RPN. When you type a number, it is entered directly on the
    stack. This means 2 (is already on the stack) ENTER (makes a copy).
    Take a look at the part of the manual describing RPN operation. You
    will need to take a look at it. I do the same thing when switching
    back and forth from the 50 to the 35. Takes a few mins before I stop
    doing it.

    TW

  3. Re: HP 35s Stack: Bug?

    On Tue, 4 Nov 2008 18:50:57 -0800 (PST), TW
    wrote:

    >> Am I just doing something wrong?

    >
    >RPL is not RPN. When you type a number, it is entered directly on the
    >stack. This means 2 (is already on the stack) ENTER (makes a copy).
    >Take a look at the part of the manual describing RPN operation. You
    >will need to take a look at it. I do the same thing when switching
    >back and forth from the 50 to the 35. Takes a few mins before I stop
    >doing it.
    >
    >TW



    The HP41C/V/X does the same thing. I have a similar problem when
    switching back an forth from the 41 and 48/49/50 series
    Harold A. Climer
    Dept Of Physics Geology & Astronomy
    U.T. Chattanooga
    Room 406A Engineering,Math & Computer Sicence Building
    615 McCallie Ave.
    Chattanooga TN 37403
    Harold-Climer@utc.edu

  4. Re: HP 35s Stack: Bug?

    >>RPL is not RPN. When you type a number, it is entered directly on the
    >>stack. This means 2 (is already on the stack) ENTER (makes a copy).
    >>Take a look at the part of the manual describing RPN operation. You
    >>will need to take a look at it. I do the same thing when switching
    >>back and forth from the 50 to the 35. Takes a few mins before I stop
    >>doing it.
    >>
    >>TW

    >
    >
    > The HP41C/V/X does the same thing. I have a similar problem when
    > switching back an forth from the 41 and 48/49/50 series


    I'm more used to the HP 35/45/65/67 so I have a problem when using
    the newer machines! The 35s brings back many happy memories.

    Tom Lake

  5. Re: HP 35s Stack: Bug?

    Hey, thanks everyone for the help.

    That's exactly what I'm doing -- switching from a 50 to a 35 (I wanted stash
    a lighter calc in my backpack). I think I've gotten the hang of it, though
    the manual could explain it better (even the full version is kinda vague).

    Off to read more of the manual,

    D

    >
    > RPL is not RPN. When you type a number, it is entered directly on the
    > stack. This means 2 (is already on the stack) ENTER (makes a copy).
    > Take a look at the part of the manual describing RPN operation. You
    > will need to take a look at it. I do the same thing when switching
    > back and forth from the 50 to the 35. Takes a few mins before I stop
    > doing it.
    >
    > TW
    >





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