Messily getting as far as counting the bilinear terms and setting up … #607

Job	Run time
linux/3.8/bare-env	9s
lint/style-and-typos	45s
linux/3.12	17m 18s
osx/3.10	11m 19s
win/3.9	43m 9s
linux/3.11/conda	21m 30s
linux/3.10/mpi	9m 9s
linux/3.10/cython	15m 45s
win/3.8/pip	18m 11s
process-coverage-${{ matrix.TARGET }}	0s
	2h 17m 15s

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