[Paraview] SWKey: EnSight reader support for non-symmetric 2nd-order tensors???

Reference: ParaView Version 4.3.1 (Q1) Is it intended that ParaView's EnSight reader support non-symmetric 2nd-order tensors? The attached EnSight formatted file set contains two test cases defined on a single 4-node quadrilateral in 3D -- Test Case 1:

[Paraview] SWKey: Definitions of 'Q-Criterion' and the calculator's mag(*) operator? Revised w/ Answers

Reference: ParaView Version 4.3.1 I have two technical questions:  (Q1) In the PV filter 'Gradient Of Unstructured Data Set' is the "QCriterion" function, the Q-Criterion defined by J. C. R. Hunt, A. Wray, and P. Moin (1988) "Eddies, stream, and convergence