double factorial returns CL rational

Minor (new, I think) problem:

MAXIMA> (rationalp (ftake '%double_factorial -7))
T


CL rationals look okay:

(%i27) (-7)!!;
(%o27) -(1/15)

(%i28) -1/15;
(%o28) -(1/15)


The function alike1 correctly tells me they are not the same:

(%i35) ?alike1((-7)!!, -1/15);
(%o35) false

And equal tells me they are:

(%i40) equal((-7)!!, -1/15);
(%o40) equal(-(1/15),-(1/15))

(%i41) is(%);
(%o41) true


--Barton

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