From: nma@12000.org   
      
   Someone posted an interesting observation at Mathematica forum,   
   and I am not able to reproduce it in Maple or mupad or   
   Matlab.   
      
   Mathematica implements  (x/x) as x*1/x, which causes something   
   like this   
      
   x = 935.93;   
   x/x   
           0.9999999999999999`   
      
   Which is correct, from floating point operations, if the operation   
   is done by evaluating 1/x then multiplying the result with x.   
      
   Here it is in Matlab:   
      
   x=935.93;   
   r=1/x;   
   r*x;   
   >> num2strexact(ans)   
      
   0.99999999999999988897769753748434595763683319091796875   
      
   But this happens in Mathematica, even if one types in x/x,   
   which does not happen in Matlab nor in Maple:   
      
   >>x=935.93;   
   >>x/x   
         1   
   >> num2strexact(ans)   
   1   
      
   And not in Maple:   
      
   x:=935.93;   
   x/x;   
       1.000000000   
      
   So my question is: Why does Mathematica implement x/x as x*(1/x)   
   or rather, why does one not get the same result as Mathematica   
   gets using the other systems?   
      
   Do you know of a system which gives the same result as   
   Mathematica when given the input x/x for x=935.93?   
      
   Just trying to understand the logic of what is going on as it   
   seems the difference is interesting.   
      
   ps. my PC is 64 bit intel, and the programs are 64 bits also.   
      
   --Nasser   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)