XR (exact real arithmetic) question please?

[Colin Finlay]

I am using the
XR (exact real arithmetic).py function XR.py
and after some time a error message comes up.

QUOTE
  File "XR.py", line 401, in <lambda>
    return XR(XR.memo(lambda n: (x(n+2)+y(n+2)+2)>>2))
RuntimeError: maximum recursion depth exceeded
UNQUOTE
What does this mean please?
Please reply here or to cmfinlaySPAM at magnet.com.ay
please remove the 'SPAM'