[R] solve the quadratic equation ax^2+bx+c=0

[Christoph Buser]

Hi

Have a look at ?polyroot. This might be helpful.

Regards,

Christoph Buser

--------------------------------------------------------------
Christoph Buser <buser at stat.math.ethz.ch>
Seminar fuer Statistik, LEO C13
ETH (Federal Inst. Technology)	8092 Zurich	 SWITZERLAND
phone: x-41-44-632-4673		fax: 632-1228
http://stat.ethz.ch/~buser/
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Yuying Shi writes:
 > If I have matrics as follows:
 > > a <- c(1,1,0,0)
 > > b <- c(4,4,0,0)
 > > c <- c(3,5,5,6)
 > How can I use R code to solve the equation ax^2+bx+c=0.
 > thanks!
 >  yuying shi
 > 
 > 	[[alternative HTML version deleted]]
 > 
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