From: nma@12000.org   
      
   On 6/4/2021 5:56 PM, clicliclic@freenet.de wrote:   
   >   
      
   > Wow, Maple users are now given documented access to its Risch   
   > integrator by way of the revolutionary syntax int(f(x), x, method =   
   > risch).   
   ...   
   > Martin.   
   >   
      
   FYI;   
      
   I just run all 50 failed Maple integrals in the Timofeev_Problems using   
   risch, but still none of them passed. I wanted to see if any will now pass.   
      
   It is possible to have Maple try all methods it has one by one automatically   
   also, like this   
      
   intergand:=exp(x)*arcsin(tanh(x));   
   int(intergand,x, method=_RETURNVERBOSE);   
      
     [FAILS = ("gosper", "lookup", "derivativedivides", "default",   
               "norman", "trager", "meijerg", "risch", "elliptic")]   
      
   The above says all of these methods failed on this integral including risch.   
      
      
   --Nasser   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)