[Users] Kranc and xAct

Comer Duncan comer.duncan at gmail.com
Tue Aug 25 08:16:32 CDT 2015


Ian,

Thanks for your note. I am still having trouble with the .m file and so am
not needing the xAct way just yet. This is becoming more and more
frustrating as I try to get the .m file in a shape more along your Weyl4
example.  I am not wanting to whine to the list as I think that is a big
waste of people's time.  I do like the kranc approach and am convinced of
its demonstrated utility relative to having to construct thorns from
scratch. Sorry for bothering you and Eloisa about this.  I do appreciate
your help and do understand that your can't perform miracles...

Best regards,

Comer

On Tue, Aug 25, 2015 at 8:17 AM, Ian Hinder <ian.hinder at aei.mpg.de> wrote:

>
> On 22 Jul 2015, at 21:00, Comer Duncan <comer.duncan at gmail.com> wrote:
>
> Ian,
>
> Yes, I'd like to see the example you mention.
>
>
> Hi Comer,
>
> Sorry I have not had time to do this yet.  It is on my task list.  Do you
> need it soon?
>
>
> Thanks.
>
> Comer
>
> On Wed, Jul 22, 2015 at 11:26 AM, Ian Hinder <ian.hinder at aei.mpg.de>
> wrote:
>
>>
>> On 22 Jul 2015, at 16:04, Comer Duncan <comer.duncan at gmail.com> wrote:
>>
>> Do Kranc and xAct play well together?  Just curious since sometimes I do
>> things in xAct and then may want to do the same in Kranc and it would be
>> nice if I could just say import xAct and the work done in it to a
>> developing Kranc script.  Of course, there are several pieces of xAct, so
>> maybe my question is not formulated precisely enough, but what do you think?
>>
>>
>> Hi,
>>
>> There is experimental support in Kranc for using xAct as an input
>> language.  However, it is not well-tested, and might be missing important
>> functionality.  This was added by Barry Wardell some time ago.  In the
>> past, I have converted xAct expressions into the format expected by Kranc
>> using some simple replacement rules.  Let me know if you would like an
>> example.  Barry might be able to provide more details of the xAct support
>> in Kranc; I'm not sure of the current status.
>>
>> --
>> Ian Hinder
>> http://members.aei.mpg.de/ianhin
>>
>>
>
> --
> Ian Hinder
> http://members.aei.mpg.de/ianhin
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.einsteintoolkit.org/pipermail/users/attachments/20150825/0d9e89d5/attachment.html 


More information about the Users mailing list