continued fractions for nth degree roots



Hello Robert,

after an cvs update where I got the new combin.lisp I have a new error
popping up in a "make check":

Running tests in rtest10: 
********************** Problem 24 ***************
Input:
         1/5    1/4    1/3
(expr : 4    + 3    + 2   , cf(expr), foop(%%, cf(rat(bfloat(expr)))))


Result:
false

This differed from the expected result:
true

********************** Problem 25 ***************
Input:
            7/5               2/3
(expr : - 11    + sqrt(17) + 2    + sqrt(2), cf(expr), 
                                               foop(%%, cf(rat(bfloat(expr)))))


Result:
false

This differed from the expected result:
true

43/45 tests passed.

The following 2 problems failed: (24 25)

So it seems something went wrong.
Could you have a look at it , Robert?

Greetings from Berlin,

'Andreas