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**Silent Screams** OK, so after my failed attempt to derive my own function for an assignment, I ended up using the graphing program that I was using to check my answers to generate the function for me, so i now have f(x)=-1.3588109**E** -05*x^5 +0.00091719736*x^4 -0.021418315*x^3+0.19880489*x^2-0.17829018*x+2

So now i need to work back from this and get all the working out that im supposed to have, the only problem is that I have no idea what the E (above in bold) is, what it does, and how it is found. Any help in that regard would be much appreciated.