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#1 2012-10-18 18:21:39

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 85,233

Quartic formula

For the general quartic:

You never see the 4 roots of a quartic given in terms of its coefficients. Here it is:

The roots now are:


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#2 2012-10-19 06:15:39

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,507

Re: Quartic formula

It seems impractical to remember it, but it is a nice formula..


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#3 2012-10-19 11:38:11

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 85,233

Re: Quartic formula

It is for reference only. There are numerical means that are superior. I just had fun with the derivation.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Online

#4 2013-01-22 02:45:08

n872yt3r
Member
Registered: 2013-01-21
Posts: 392

Re: Quartic formula

Quartic formula? I thought it was a quadratic formula. Or are they different? dunno


- n872yt3r
Math Is Fun Rocks! smile
By the power of the exponent, I square and cube you! cool

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#5 2013-01-22 02:47:08

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 85,233

Re: Quartic formula

Quartic formula is very different, see post #1.

The quadratic formula solves quadratics, the quartic, quartics.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Online

#6 2013-01-22 05:05:34

n872yt3r
Member
Registered: 2013-01-21
Posts: 392

Re: Quartic formula

Yup. That is way out of the range.


- n872yt3r
Math Is Fun Rocks! smile
By the power of the exponent, I square and cube you! cool

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