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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
12/31/12 07:27am

Hi everybody,

I'm working on a lengthy calculation involving a number of trigonometric functions (calculating the Riemann tensor in spherical coordinates) and use FullSimplify to simplify the result. The notebook is attached to this post.

Recently I switched from Mathematica 8 to 9 and it turned out that the calculation of "riem" and "riemnp" in this notebook takes a lot longer in Mathematica 9. In Mathematica 8 it took a few minutes in my laptop, but with Mathematica 9 it is already calculating for hours. I had the same problem in some other (similarly lengthy) calculation involving spherical Bessel functions.

Can anybody confirm this?

Regards,
Manuel

Attachment: Riemann.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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