Hi,

   To my knowledge, Ryacas can do symbolic computation in R, like
Mathematica or Maple.

   I wonder if it (or any other R package) can solve symbolically a system
of equations? I have a system of four equations in four variables
(non-linear, but not very hard to solve) and wonder if Ryacas or any other
package can do it. I do not find the solution in Ryacas. Can it find a
symbolic solution to a linear system?

   Thanks,

Miao

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