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Student Support Forum: 'FullSimplify: Mathematica 9 vs. Mathematica 8' topicStudent Support Forum > General > "FullSimplify: Mathematica 9 vs. Mathematica 8"

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xenos1984
01/08/13 06:47am

Here's another rather simple test case that exhibits an unusually long calculation time. In this case it is not FullSimplify, but the newly introduced Div in spherical coordinates. Since one cannot compare its calculation time to M8 (where it simply doesn't exist), I compared it to evaluating the divergence step by step using the well-known formula. The step by step evaluation runs quickly in M9, including simplification (it is 0 in the end, which is of course correct), but Div appears to hang at full CPU usage. (Actually I started the calculation before writing this post and it's still calculating.)

Anyone to test and confirm this?

Attachment: div.nb, URL: ,

Subject (listing for 'FullSimplify: Mathematica 9 vs. Mathematica 8')
Author Date Posted
FullSimplify: Mathematica 9 vs. Mathematica 8 xenos1984 12/31/12 07:27am
Re: FullSimplify: Mathematica 9 vs. Mathematica 8 Steve Keeley 12/31/12 3:57pm
Re: Re: FullSimplify: Mathematica 9 vs. Mathema... xenos1984 12/31/12 4:26pm
Re: Re: Re: FullSimplify: Mathematica 9 vs. Mat... jf 01/01/13 5:42pm
Re: Re: Re: Re: FullSimplify: Mathematica 9 vs.... xenos1984 01/03/13 5:24pm
Re: Re: Re: Re: Re: FullSimplify: Mathematica 9... Steve Keeley 01/05/13 6:16pm
Re: Re: Re: Re: Re: Re: FullSimplify: Mathemati... xenos1984 01/07/13 5:03pm
Another "long M9 calculation time" test case xenos1984 01/08/13 06:47am
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