Unexpected result calculating the determinant of a singular matrix (42S)

[Dave Britten]

Okay, I kind of wondered if there were some tricks like that going on. I remember seeing mention of LU decompositions in the Advantage Module manual, so I'm assuming that gives a similar result. The 48G, on the other hand, does return a determinant of 0 for that particular matrix, as does the 3x3 linear system solver from the 32SII manual.