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  1. #1
    Moderator IanF's Avatar
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    Square root of -1

    I have been told this is I.
    Can someone help with the logic behind this.
    Only stress when you can change the outcome!

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    A vague recollection was it being a "number" (or concept) on it own. So basically the square root of -1 = square root of -1.
    Its simply given the symbol "i".
    So "i" represents the square root of minus one.

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  4. #3
    Email problem vieome's Avatar
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    Quote Originally Posted by IanF View Post
    I have been told this is I.
    Can someone help with the logic behind this.
    The sqaure root of -1 is actually 1(i) the (i) shows us that it is a complex number. such that (i)=-1

    Square roots of negative numbers are beyond the range of real numbers hence we use complex numbers which have (i) as part of its form.

    e.g sqaure root of 9 = 3 as 3*3 = 9
    square root of -9 = 3 as 3 * 3 * (i) where (i) = -1

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    IanF (19-May-15)

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    Moderator IanF's Avatar
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    Thanks guys we made some coasters with the joke
    Click image for larger version. 

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    I couldn't get the square root part
    Only stress when you can change the outcome!

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    Moderator IanF's Avatar
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    Pic of the coaster
    Click image for larger version. 

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    Only stress when you can change the outcome!

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    Lol. Who's the customer? The local Maths conference?

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    Moderator IanF's Avatar
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    The I = Imaginery number that is what I have been told .
    The coasters are for a maths teacher I hope she understands.
    Only stress when you can change the outcome!

  10. #8
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    You got beaten to the punchline!!
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