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Heads up: Cheap scientific calculator

Discussion in 'Hobby Electronics' started by Trevor Wilson, Jan 5, 2012.

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  1. Phil Allison

    Phil Allison Guest

    "Trevor Wilson"

    ** I have two calculators in regular use - a Radio Shack (Casio) EC-4012 and
    a Casio fx-82SX. The EC-4012 was made in Japan and is 27 years old while
    the fx-82 was made in China and is about 15 years old.

    One sits near the PC and the other on my workbench.

    The annoying thing is how keyboards differ SOOOO much - egs:

    One has an X squared key with 2nd function of sq rt X - the other has the

    One has a "pi" key and the other uses the EXP for "pi".

    One has a "y to the x " key and the other uses the X key 2nd function for "
    x to the y ".

    The heavily used 1/x function uses the 2nd function of "Min" on one and of
    "EXP" on the other.

    The only keys in the same places and doing the same jobs are the numerals 0
    to 9 !!!

    You woulda thunk Casio might have standardised the keyboards a bit better.

    .... Phil
  2. yaputya

    yaputya Guest

    I used to have a HP 41C calculator, it stopped working many years ago and
    was lost forever by the idiots at Wridgeways when I moved from OZ to Europe.
    Don't do business with these crooks, they are unrepentant thieving bastards.
  3. terryc

    terryc Guest

    I have only ever used HP scientific calculators, 21/25?, 28 and now the
    48G. The first two really wore out in under ten years <mitter, mutter>.

    I wasn't impressed with that happening.

    The 48g is only still going as it was/is hardly used.
  4. terryc

    terryc Guest

    That was my problem with my HP25 after five years. Self repaired/bodgy
    and managed to get another five years out of it.
  5. keithr

    keithr Guest

    Does anybody actually use calculators any more? there are an abundance
    of calculator apps for phones of every type and computers too. Even the
    one bundled with Win 7 is pretty decent, even has a programmer mode.
  6. **I can't speak for anyone else, but I use one almost daily. It's easier
    than booting a computer. It's even easier than trying to find an
    application. I can use one at the workbench, at the breakfast table, or
    even on the sofa. Power consumption is minimal and for 4 Bucks, it
    doesn't even warrant a second thought.

    Still, I'm an old fashioned guy. I'm re-learning how to use my old Faber
    Castell 2/83N slide rule. I even like the smell of the old girl.
  7. terryc

    terryc Guest

    Yes, far more convenient that find one of those and fiddling with the
    keys or turning it on. Actually, my brain is just as fast as most
    computer calculators.
    Which shows you how useless they really are.
  8. Peter

    Peter Guest

    Only on one of your off days. :-S
  9. I have used calculators since the HP35, after the slide-rule days. Have
    for years had a HP200LX sitting on the desk, and used its calculator app
    all the time. The biggest nuisance was I needed a different calculator
    app to do hex/binary calcs. But now I use an app for the Android phone
    which does all of the scientific stuff, in RPN, and hex/binary as well,
    one touch to launch it on the phone, and its always with me. Yes you do
    have to charge the battery every couple of days, but at least its only
    one thing to carry around and keep track of.
  10. swanny

    swanny Guest

    HP-15C, all the time. Now over 30 years old.
    Even have an HP-15C calculator on the i-device.
  11. keithr

    keithr Guest

    My computers are always on, just a case of clicking on the icon. If
    there isn't a computer in reach, my android phone can do normal,
    scientific, programming or financial calculations.
    I've still got the Faber Castell 62/82 electronics slip stick, but it is
    more of a sentimental attachment I haven't used it in years. I also have
    a Casio scientific calculator that I bought in Japan back in 1982 and
    have never found any better, but it hasn't been used in several years
  12. **I don't leave my computer on. It is not always within convenient reach
    and I don't have a smart 'phone. I'm happy with my $4.00 calculator.
    **Different strokes. I like having a calculator handy.
  13. I agree, I have to fumble around on any other calc, even for 1+1=2
    stuff, and doing complex math is totally hopeless without RPN.
  14. Tom

    Tom Guest


  15. terryc

    terryc Guest

    err 1+ {:)
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