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Order 4 polynom

  1. Dec 9, 2006 #1
    Is there a website that given the coefficients of a order 4 polynom, it will give me all 4 roots of this polynom?

    Thanks.
     
  2. jcsd
  3. Dec 9, 2006 #2

    radou

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  4. Dec 10, 2006 #3

    mathwonk

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    you are looking for the quartic formula, discovered in the 1500s. surely it is out there, perhaps on wolfram.
     
  5. Dec 10, 2006 #4

    mathwonk

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  6. Dec 10, 2006 #5
    Well, if you want to use a calculator, like the TI-86, it will find an approximation of the roots fast....Maybe that is what you mean.

    As for the entry given on PlanetMath.Org, I note at the bottom of that page the "disclaimer": The formulas for the roots are much too unwieldy to be used for solving quartic equations by radicals, even with the help of a computer.
     
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