>>>>> "Richard" == Richard Fateman <fateman@cs.berkeley.edu> writes:
Richard> In the absence of other instructions, radcan tries to impose
Richard> a consistent "positive real" interpretation on radicals. The
Richard> alternative of providing all 12 roots of the expression is
Richard> painful; the choice of |u|, a non-algebraic quantity,
Richard> is controversial. There is no answer that makes everyone
Richard> happy, historically speaking.
Yes, that's why I suggested that the documentation should at least
mention this. :-)
Ray