Math function "ln" in Petsc
Barry Smith
bsmith at mcs.anl.gov
Thu Jan 1 09:09:14 CST 2009
I do not see this problem with petsc-3.0.0 or petsc-dev.
Are you using something strange like complex numbers or singe
precision
storage or quad floating point?
Barry
On Jan 1, 2009, at 7:16 AM, (Rebecca) Xuefei YUAN wrote:
> Hey,Barry,
>
> I add the following into petscmath.h file, and it works now. Thanks
> very much!
>
> # define PetscLogScalar(a) log(a)
>
> Rebecca
>
> Quoting Barry Smith <bsmith at mcs.anl.gov>:
>
>>
>> It is called PetscLogScalar()
>>
>> Barry
>>
>> On Dec 31, 2008, at 9:14 PM, (Rebecca) Xuefei YUAN wrote:
>>
>>> I know that there is a PetscExpScalar, but it seems that there is
>>> no such a function like PetscLnScalar.
>>>
>>> Thanks!
>>>
>
>
>
> --
> (Rebecca) Xuefei YUAN
> Department of Applied Physics and Applied Mathematics
> Columbia University
> Tel:917-399-8032
> www.columbia.edu/~xy2102
>
More information about the petsc-users
mailing list