I ran into this bug today (Maple V, Release 4.00b):
The same bug appears with combine(..., radical). It also appears for other expressions of the same form:
with n, p, and q being actual integers.
Addendum to my ﬁrst post.
The imaginary unit I is simply gone!
The bug is removed in Maple V Release 5. (U. Klein)
Using the option ’conjugate’ in combine avoids at least the disappearing of the imaginary unit, but does no combining at all. I guess this is not what you really want.
Indeed a mystery:
in anything like:
with powers, other than (1/2), the ”I” dispappears.
However, if we add the option ”power”
the answer is again allright.