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Math Help - Writing a function without negative powers

  1. #1
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    Writing a function without negative powers

    So I have a function f(x) = e^{-x^2}. I want to write this without a negative exponent. How would I do this? I know how to do it with integer exponents, but I'm not sure when they're variables. Thanks!
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  2. #2
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    Quote Originally Posted by Glitch View Post
    So I have a function f(x) = e^{-x^2}. I want to write this without a negative exponent. How would I do this? I know how to do it with integer exponents, but I'm not sure when they're variables. Thanks!
    Do you know that \displaystyle a^{-m} = \frac{1}{a^m} ....? Why would you doubt using this in your current question?
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  3. #3
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    That's what I thought, but this text says this:

    \frac{x}{e^{x^2}}

    Actually, I'm an idiot, just realised that the function was xe^{-x^2} >_<

    That explains why I was confused!
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