[aspect-devel] available math functions

[Jonathan Perry-Houts]

It was merged over a year ago. I'm on the development branch, so I don't 
know if that's been in a release version yet, but it has been a while 
since that was included. You can always compile dealii and aspect 
without administrator permissions, but that's probably more of a hassle 
than its worth just to get one convenience function. You can always just 
write your own plugin to do the same thing.

-JPH

On 12/29/2016 7:22 PM, FELIPE ORELLANA ROVIROSA wrote:
>
>  Thanks Jonathan,
>
> I converted my expression for it to use erfc,
>
>    set Function expression = 1800 - 1500*erfc((2.6328e-5)*z);
>
> but I still get errors..
>
>  ERROR: FunctionParser failed to parse
>     'Initial conditions.Function'
> with expression
>     '1800 - 1500*erfc((2.6328e-5)*z);'ERROR: FunctionParser failed to parse
> ERROR: FunctionParser failed to parse
>
>
> I guess perhaps my deal.ii is not updated. When did you implement the
> parsing of erfc?
>
>  It happens that the cluster I am using is not administered by me, so I
> cannot just update deal.ii
>
> thanks anyways,
> cheers,
>
> Felipe
>
>
>
> On Thu, Dec 29, 2016 at 3:14 PM, Jonathan Perry-Houts
> <jperryh2 at uoregon.edu <mailto:jperryh2 at uoregon.edu>> wrote:
>
>     I implemented erfc in deal.ii's FunctionParser a while ago (so you
>     should have it). Adding erf would be just as easy if you need it.
>     Here's my pull request to deal.ii for reference:
>     https://github.com/dealii/dealii/pull/1769
>     <https://github.com/dealii/dealii/pull/1769>
>
>     -JPH
>
>
>     On 12/29/2016 11:50 AM, FELIPE ORELLANA ROVIROSA wrote:
>
>
>          Hi all,
>
>           Happy holidays !
>
>          I just tried to implement a simple model on Aspect, which
>         contained the
>         error function
>
>            I invoked it as erf(..)
>
>          and I got errors. Then I pasted the corresponding code line on
>         matlab
>         and it worked..so it is something with Aspect that I am not
>         doing right.
>
>            Is the error function available on Aspect? what math library is
>         Aspect bundled with?
>
>         Felipe
>         ps: This is the Aspect error I got:
>
>            ERROR: FunctionParser failed to parse
>             'Initial conditions.Function'
>         with expression
>             '300 + 1500*erf(0.5*z/((36.0658*1e7)^0.5));'ERROR:
>         FunctionParser
>         failed to parse
>         ERROR: FunctionParser failed to parse
>
>         ...
>         ..
>
>
>
>
>         _______________________________________________
>         Aspect-devel mailing list
>         Aspect-devel at geodynamics.org <mailto:Aspect-devel at geodynamics.org>
>         http://lists.geodynamics.org/cgi-bin/mailman/listinfo/aspect-devel
>         <http://lists.geodynamics.org/cgi-bin/mailman/listinfo/aspect-devel>
>
>     _______________________________________________
>     Aspect-devel mailing list
>     Aspect-devel at geodynamics.org <mailto:Aspect-devel at geodynamics.org>
>     http://lists.geodynamics.org/cgi-bin/mailman/listinfo/aspect-devel
>     <http://lists.geodynamics.org/cgi-bin/mailman/listinfo/aspect-devel>
>
>
>
>
> _______________________________________________
> Aspect-devel mailing list
> Aspect-devel at geodynamics.org
> http://lists.geodynamics.org/cgi-bin/mailman/listinfo/aspect-devel
>