[Axiom-developer] aldorunit vs regression tests

[daly]

the AldorUnit package is testing algebra functions for correct results.
this kind of unit testing is certainly needed but is well beyond my
powers for portions of axiom's algebra.

my regression test code simply compares prior results to current results
to highlight things that have changed. it makes no distinction between
a correct result and an incorrect result. only different results matter.
regression testing is much weaker than unit testing but attacks the 
problem at hand, i.e. does this break something?

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