Thanks a lot, Yan
On Fri, Jan 15, 2010 at 2:29 PM, Matthew Knepley <knepley at gmail.com> wrote: > You can also use PetscAbsScalar(). > > Matt > > > On Fri, Jan 15, 2010 at 1:29 PM, Matthew Knepley <knepley at gmail.com>wrote: > >> fabs(). >> >> Matt >> >> >> On Fri, Jan 15, 2010 at 1:25 PM, Ryan Yan <vyan2000 at gmail.com> wrote: >> >>> Hi All, >>> I am solving nonlinear BVP on structure grid using DM. >>> >>> For the variable v, I have the following term included in my residual: >>> abs(v)*v >>> >>> My question is: >>> In DMMGSetSNESLocal(), for the FormFunctionLocal(), at interior node i, >>> What is the right PETSc function to use for the abs in: >>> abs(x[i].v) * x[i].v >>> >>> Thanks, >>> Yan >>> >> >> >> >> -- >> What most experimenters take for granted before they begin their >> experiments is infinitely more interesting than any results to which their >> experiments lead. >> -- Norbert Wiener >> > > > > -- > What most experimenters take for granted before they begin their > experiments is infinitely more interesting than any results to which their > experiments lead. > -- Norbert Wiener > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20100115/be2d1154/attachment.htm>
