Roots of quadratic system.
Kjetil Brinchmann Halvorsen wrote:
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
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========================================== Dr. John Janmaat Department of Economics Acadia University Wolfville, Nova Scotia, Canada.