XPost: sci.math   
   From: Christopher.Creutzig@mathworks.com   
      
   On 7/27/15 2:40 PM, IV wrote:   
      
   > A symbolic solution: There is an algebraic expression only for this   
   > solution.   
      
   What exactly do you mean by that? “Any x such that x^5-x+1=0” is a   
   perfectly valid symbolic solution to me, is it to you as well?   
      
   Keyword to look for in the literature (not sure if you find any good   
   material online): Galois groups, solvable Galois groups.   
      
      
   Christopher   
      
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