[aspect-devel] available math functions

[FELIPE ORELLANA ROVIROSA]

 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>
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
>
> -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
>>
>> ...
>> ..
>>
>>
>>
>>
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