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My TI-30Xa

Discussion in 'Electronic Design' started by Jamie, Jun 6, 2012.

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  1. Jamie

    Jamie Guest

    I returned to work today after vacation week, and grabbed my
    calculator, pins, a couple of precision screw drivers I carry around
    with me, in my shirt pocket. I wanted to Kack-CU_late something before
    going to work. Pulled open the slide cover to the TI-30, turned it on,
    and noticed the bottom row of the LCD was missing. I said Hummm...

    So, I quickly retrieved a $3.00 calculator I got at the local
    junk store, something I usually pick up for shirt units if it's
    cheap and covers the sci basics. Well, I noticed this $3.00 unit has
    HEX, OCT, BIN and DEC keys on it, along with the standard SCi functions
    of course. Even has some Integral and sum loop function. I said hmm,
    that was one hell of a find, why didn't I get the rest of them?

    In any case, I fixed my TI-30Xa and put that gem of a $3.00 calculator
    back into its box where it's safe :)


    This thing does not even have a brand name on it..

  2. I think it may be a rebranded Casio, like the one I have in my tool box.
    cost me $9 at staples.

  3. Tim Williams

    Tim Williams Guest

    I have an old (as consumer goes) generic scientific calculator, branded
    Canon. It does sci., stats and complex.

    To do complex on mine, you:
    Enter "CPLX" mode (2nd F + whichever says CPLX)
    To enter a number:
    Type the real component, then press "a". If the real component is zero,
    then omit this step or press "0", "a".
    Type the imaginary component, then press "b". If the imaginary component is
    zero, omit this step or press "0", "b".

    To calculate:
    Enter a number, press the operator (unfortunately, no extended functions are
    available, only arithmetic), enter another number, and press "=".

    To read a number:
    press "a" to read the real component
    press "b" to read the imaginary component
    press R>P to convert to polar; "a" now contains the magnitude and "b"
    contains the angle (in whichever format is selected, DEG-GRAD-RAD).

    A number can respectively be entered in polar format, followed by the P>R
    function (after which, the rectangular components can be read off).

    I haven't seen any cheapie scientific calculators with symbolic math or
    calculus features, but I haven't gone shopping for one in ages. I always
    have MATLAB, Excel, SPICE, Google Calculator or Wolfram Alpha handy if I
    want to poke around with various things.

  4. Jamie

    Jamie Guest

    That sounds like it maybe the same one. The HEX,OCT, BIN, DEC are on the
    common -,x,+ etc keys.. and it does do polar, complex etc..

    Yes, it has the Real number, imaginary part. ect.

    The STAT mode works here, you need to first turn that mode on.
    that is the shift+On button..
    then the keys on the right side become the functions you see in white and
    plus the shifted functions..

  5. Mac Decman

    Mac Decman Guest

    Did you ever try Yorick? It's supposed to be the Python MATLAB.
    Hah I still use my HP 11C until it gets more than a few register deep
    then I use Mathematica/Alpha. I do like the new Mathematica that it
    can use Alpha to parse the direct syntax without writing it out in

    Mark DeArman
  6. I checked a CVS. They have nothing near that value.
  7. Did the junk store have a name? I can never fnind anything like that in the
    NY area.
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