Swarm ex2: Fixed complex compilation failures.

Swarm ex2: Added triangle and ctetgen requirements to tests.

Revert "added ex3 - vlasov-poisson"

This reverts commit 98894317335be4aa1f893dfc22f7008f9440f14f.

Revert "started ex3 with TS"

This reverts commit 8547342d98863817b17b19a62a2f5c187ef05cb9.

Revert "added v x B term"

This reverts commit e728a9a5d75b274609046b31c089984cca153af8.

Revert "added q/m"

This reverts commit 062151297e8bb62f7faa8ebcbd555e12c17c868b.

Revert "more adding TS to ex3"

This reverts commit 68748f029dbfbfff647773b3020a6bf1a2d7ef6a.

added ex5 for vlasov with TODO stubs

ex4: modified energy conserved

swarm.c: removed commented debug code/commented code

ex4: momentum working, position broken

update petscspace_order to petscspace_degree

Merge branch 'master' into jpusztay/feature-swarm-symplectic-example

Merge branch 'master' into jpustay/feature-swarm-example

ex4: TS works for single particle, 1d problem using 2d options

Merge from master

ex2: added test output and altered comments

ex2: Added comment to interpolate gradient function

ex2: add gradient interpolation TODO: needs to be cleaned up before PR

PetscSpaceSetDegree(): now take maxDegree argument

For symmetry, and some auxiliary / exotic spaces and the like are easier
to specify by their maximum degree by their maximum complete subspace
(e.g

PetscSpaceSetDegree(): now take maxDegree argument

For symmetry, and some auxiliary / exotic spaces and the like are easier
to specify by their maximum degree by their maximum complete subspace
(e.g. homogeneous polynomials).

show more ...

PetscSpace: -petscspace_order -> -petscspace_degree

Per Matt's request, a deprecated warning will print for this change.

PetscSpace: rename Get/SetOrder() to Get/SetDegree()

Also make PetscSpaceGetDegree() return an envelope of min and max
degrees. We want the min degree when we want to characterize the order
of conv

PetscSpace: rename Get/SetOrder() to Get/SetDegree()

Also make PetscSpaceGetDegree() return an envelope of min and max
degrees. We want the min degree when we want to characterize the order
of convergence (via the Bramble-Hilbert lemma); we want the max degree
when are trying to determine what kind of quadrature is sufficient to
integrate an element.

show more ...

ex2: moved ksp setup to user options

Merge branch 'jpustay/feature-swarm-example' of https://bitbucket.org/Jpusztay/petsc into jpustay/feature-swarm-example

ex2: Check moments in particles to field case