This uses our own Q1 local basis implementation that hands out std::array
results

Imported and adapted from dune-localfunctions q1localbasis

Avoid allocating extra vector in matrix-free applyscaleadd()

Closes #4

See merge request jfahl_01/pacxx-projectseminar-2019!17

This is to appease clang 3.8

Implement jacobian_apply_volume analytically

See merge request jfahl_01/pacxx-projectseminar-2019!12

Closes: #4

Implement jacobian_apply_boundary() analytically

See merge request jfahl_01/pacxx-projectseminar-2019!16

Addresses: #6

Check the number of iterations needed by newton

Closes #11

See merge request jfahl_01/pacxx-projectseminar-2019!15

Closes: #11

Fix warnings in debian-9 clang build

See merge request jfahl_01/pacxx-projectseminar-2019!14

Addresses: #3

Clear result in matrix-free operator apply()

Closes #10

See merge request jfahl_01/pacxx-projectseminar-2019!13

At the operator level, apply() is the equivalent of mv(), not umv().

Closes: #10

Run CI with PACXX

Closes #8

See merge request jfahl_01/pacxx-projectseminar-2019!11

Make test definitions more readable (also for octagon)

See merge request jfahl_01/pacxx-projectseminar-2019!10

Make test definitions moare readable

See merge request jfahl_01/pacxx-projectseminar-2019!9

Addresses: #9

Use an octagon domain to have something better than unit square

Closes #7

See merge request jfahl_01/pacxx-projectseminar-2019!8

Addresses: #9

Fix config key name for grid reader type

See merge request jfahl_01/pacxx-projectseminar-2019!7

Make Ini file configurable

See merge request jfahl_01/pacxx-projectseminar-2019!6

Make the operator really matrix-free

Closes #2

See merge request jfahl_01/pacxx-projectseminar-2019!5

Closes: #2

Solvers support matrix-free operations

See merge request jfahl_01/pacxx-projectseminar-2019!4

Make solver configurable

See merge request jfahl_01/pacxx-projectseminar-2019!3

Surprisingly, the reference vtu's still work...