Find the Roots of Your Order 4 Polynom - Get Instant Results!

[yetar]

Is there a website that given the coefficients of a order 4 polynom, it will give me all 4 roots of this polynom?

Thanks.

 

[radou]

Is there a website that given the coefficients of a order 4 polynom, it will give me all 4 roots of this polynom?

Thanks.

Hope this helps: http://www.themathpage.com/aPreCalc/factor-theorem.htm" .

 

[mathwonk]

you are looking for the quartic formula, discovered in the 1500s. surely it is out there, perhaps on wolfram.

 

[mathwonk]

here you go:

http://planetmath.org/encyclopedia/QuarticFormula.html

 

[robert Ihnot]

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.