Jianliang Wang schrieb:   
   >   
   > rubi for integral is good, the results always can be understand by   
   > person, but I found rubi always need to read all the rules and this   
   > take a long time could this be just read one time forever.   
      
   Just wondering: How long does the loading of Rubi into Mathematica   
   roughly take? Perhaps the loss of time can be avoided by saving an   
   internal representation? What is the experience of other users?   
      
   Martin.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)