Roots of quadratic system.

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Hello,

I have a system of quadratic equations (results of a Hamiltonian optimization)
which I need to find the roots for.  Is there a package and/or function which
will find the roots for a quadratic system? 

Certainly you cxould use solve, see
?solve
Alternatively you could go for a computer algebra system with an 
implemantation
of groebner basis, and use an symbolic method.

Kjetil
Note that I am not opimizing, but
rather solving the first order conditions which come from a Hamiltonian.  I am
basically looking for something in R that will do the same thing as fsolve in
Matlab.

Thanks,

John.

==============================================
Dr. John Janmaat
Department of Economics
Acadia University
Tel: 902-585-1461

______________________________________________
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-- 

Kjetil Halvorsen.

Peace is the most effective weapon of mass construction.
               --  Mahdi Elmandjra
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John Janmaat wrote:

Hello,

I have a system of quadratic equations (results of a Hamiltonian 
optimization)
which I need to find the roots for.  Is there a package and/or 
function which
will find the roots for a quadratic system?
Certainly you cxould use solve, see
?solve
Alternatively you could go for a computer algebra system with an 
implemantation
of groebner basis, and use an symbolic method.
I have looked into using solve.  However, solve works on a system of 
linear equations (at least that is how I read it).  I have a system of 
quadratic equations.  They can be written to equate to zero, so that a 
non-linear system solver should do the trick.

John.
Kjetil

Note that I am not opimizing, but
rather solving the first order conditions which come from a 
Hamiltonian.  I am
basically looking for something in R that will do the same thing as 
fsolve in
Matlab.

Thanks,

John.

==============================================
Dr. John Janmaat
Department of Economics
Acadia University
Tel: 902-585-1461

______________________________________________
R-help at stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! 
http://www.R-project.org/posting-guide.html

==========================================
Dr. John Janmaat
Department of Economics
Acadia University
Wolfville, Nova Scotia, Canada.