meshmode
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Connections should view themselves as doing projection, not interpolation
Some of the terminology is annoyingly interp-focused.
Still an issue, or can this be closed?
Nope, this is still going on. https://github.com/inducer/grudge/issues/38 is related. I think the latest consensus is that connections should self-label as to whether they can mathematically be viewed as interpolation, projection, both or neither, and we should have both project and interp interfaces in grudge, possibly also approximate_project.