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    Without sounding silly, how on earth do you do 5^(-0.25) on one of these calculators

    It doesnt matter whether i use the y^x key, or the EXP key, with or w/o brackets, it always comes up with an error 1, or it just wont acceot the decimal point.
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    type
    5
    y^x key
    left bracket
    -0.25
    right bracket
    equals.

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    equals.......error 1

    I wish i still had my casio :-(
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    why dont you try putting the 0.25 in as a fraction? the button next to the Exp button. press 1 then that button then 4 and it's 0.25
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    (Original post by sequence123)
    equals.......error 1

    I wish i still had my casio :-(
    nah ur calculators broken or u dont know how to use it.

    press reset and try again.
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    I have access to three Sharp Dal(all different model numbers) calculators, all three come up with the same error message no matter how i try it, and yes, ive tried the fraction method as opposed to using decimals.

    I clearly dont know how to use it thats why im asking here for help.

    Resetting doesnt do anything, and ive typed it in step by step what the first guy said.
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    (Original post by sequence123)
    I have access to three Sharp Dal(all different model numbers) calculators, all three come up with the same error message no matter how i try it, and yes, ive tried the fraction method as opposed to using decimals.
    Which model numbers?

    Sharp EL-531LH works fine here.

    You are using the +/- key aren't you?

    You might try typing 0.25 then the +/- key if you still have problems.
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    Got a DAL EL-531VH here and the equation works when using the +/- button for the minus symbol.
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    press
    5
    y^x
    left bracket
    0
    .
    2
    5
    +/-
    right bracket
    equals

    on a SL-520V advanced DAL
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    casio calculators are more user friendly than sharps
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    Yeh i wasn't using the +/- key

    I'm used to using the (-) key on the casios
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    (Original post by SamTheLlama)
    Got a DAL EL-531VH here and the equation works when using the +/- button for the minus symbol.
    got a sharp dal el-506v here :p: works fine. yes i should have elaborated, the +/- button for negative is what you need to press, the minus/take away sign is useless here.
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    (Original post by sequence123)
    Yeh i wasn't using the +/- key

    I'm used to using the (-) key on the casios
    dont u have a manual for it?
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    I have always used Sharps, I borrowed a CASIO once and eeek :eek: I had to keep running back to the owner asking how do you do this, wheres that button etc. So i guess its just a matter of what you are used to.
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    (Original post by marisad_uk)
    I have always used Sharps, I borrowed a CASIO once and eeek :eek: I had to keep running back to the owner asking how do you do this, wheres that button etc. So i guess its just a matter of what you are used to.
    I have used both sharps and casios and in my opinion the casios are more user friendly to use, you just have to get used to using them, once you have got used to them, they are much easier to use than sharps. For instance once sharp i owned had the DRG button close to the replay arrows, so i was always hitting that without knowing and my trig ratios were going crazy. the drg button is a bad idea as it can be accidentally pressed. Plus the way which you enter data through the casio is better than the sharps. the sharps are easier if you are used to using a non replay calculator (like old 8 digit calc) as it is trying to emulate that while displaying the overall equation, imo the casio method is better.
 
 
 
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