XPost: comp.lang.c   
   From: fateman@cs.berkeley.edu   
      
   I think that you are trying to do  functional decomposition, which   
   has been investigated before.   
   See   
   https://en.wikipedia.org/wiki/Polynomial_decomposition   
      
   Writing a program using a computer algebra system, or   
   in Lisp, would probably allow you to work on the essential   
   algorithms rather than writing a stand-alone parser + stuff.   
      
   RJF   
      
   On 6/15/2017 3:05 AM, Rosario19 wrote:   
   > /*   
   > Do you like this   
   > function that would find sub expression for composition of math   
   > expressions?   
   >   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)