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Re: Getting rid of the symbol -> after finding the root



Mostaghel, Naser schrieb:
> Dear Friends,
> I need to use the root of a simple equation in subsequent operations.
> After extracting the root, it comes in the form ->root.  I have not been 
> able to get rid of the symbol -> .
> 
> Can someone help?
> 
> Thanks,
> 
> 
> Naser Mostaghel
> Professor, Civil Engineering
> T: (419) 530-8131
> F: (419) 530-8116
> E: nmostag at utnet.utoledo.edu
> 
> 
> 
r = Solve[x^2 + a x + b == 0, x]

\!\(TraditionalForm\`{{x -> 1\/2\ \((\(-a\) - \@\(a\^2 - 4\ b\))\)}, {x ->
         1\/2\ \((\@\(a\^2 - 4\ b\) - a)\)}}\)
r[[1, 1, 2]]
isolates the 1st root
\!\(TraditionalForm\`1\/2\ \((\(-a\) - \@\(a\^2 - 4\ b\))\)\)

r[[1, 1, 2]]
isolates the 2nd root
\!\(TraditionalForm\`1\/2\ \((\@\(a\^2 - 4\ b\) - a)\)\)






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