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 Author Comment/Response Forum Moderator email me 08/01/12 11:27am Many suspected hangs turn out to be just very, very slow. Not that it makes a big difference for most users. This case is a known problem with SolveAlways and the form Sqrt[1 - r^2]. In[1]:= TimeConstrained[ SolveAlways[(a + b) (1 - r^2) + c r Sqrt[1 - r^2] == 0, {r}], 30] Out[1]= \$Aborted Replacing the Sqrt with a scalar gives something that is solved quickly. In[2]:= Timing[ SolveAlways[(a + b) qq^2 + c r qq == 0, {r, qq}]] Out[2]= {0.001246, {{a -> -b, c -> 0}}} My apologies for the inconvenience this caused. URL: ,

 Subject (listing for 'Mathematica evaluation not completing') Author Date Posted Mathematica evaluation not completing Dean 07/29/12 12:51pm Re: Mathematica evaluation not completing Bill Simpson 07/30/12 11:37am Re: Re: Mathematica evaluation not completing Dean 07/31/12 11:52pm Re: Mathematica evaluation not completing Forum Modera... 08/01/12 11:27am Re: Re: Mathematica evaluation not completing Dean 08/02/12 4:11pm
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