Alexander Adolf <alexander.adolf@condition-alpha.com> writes:

> 4 unexpected results:
>    FAILED  ob-calc/matrix-inversion  ((should (equal "[[-1, 0.625, -0.125], [0.25, -0.5, 0.25], [0.5, 0.125, -0.125]]" (org-babel-execute-src-block))) :form (equal "[[-1, 0.625, -0.125], [0.25, -0.5, 0.25], [0.5, 0.125, -0.125]]" "[[-1, 625e-3, -125e-3], [250e-3, -500e-3, 250e-3], [500e-3, 125e-3, -125e-3]]") :value nil :explanation (arrays-of-different-length 63 77 "[[-1, 0.625, -0.125], [0.25, -0.5, 0.25], [0.5, 0.125, -0.125]]" "[[-1, 625e-3, -125e-3], [250e-3, -500e-3, 250e-3], [500e-3, 125e-3, -125e-3]]" first-mismatch-at 6))

Will the failure disappear if you try the attached patch?