From: //noreply@axelvogt.de   
      
   On 16.04.2017 19:59, clicliclic@freenet.de wrote:   
   ...   
      
   Maple allows "only" top level commands (but one is   
   free to dig in its libraries).   
      
   BTW: ln(x)*ln(x^2) = 2*ln(x)^2 holds for 0 < x,   
   for x = -1 you would have 0 = -2*Pi^2 in Maple   
      
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