I'm using 4.0.2 and get the following when I try to simplify a fraction with symbolic binomial coefficients:
sage: t, n = var('t n')
sage: expr = binomial((t+1)*(n+1), n+1)/binomial((t+1)*n, n)
sage: expr.simplify()
ERROR: An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line statement', (927, 0))
[traceback snipped]
/opt/sage-4.0.2-x86_64-Linux/local/lib/python2.5/site-packages/sage/symbolic/expression.so
in sage.symbolic.expression.Expression.operator
(sage/symbolic/expression.cpp:15127)()
RuntimeError: cannot find SFunction in table
I get the same error with 4.1.rc1. This seems similar to #6421, but
perhaps the bigger issue is that it blows up at all. I'm not sure what
the exact issue is here.
Dan
--
--- Dan Drake <dr...@kaist.edu>
----- KAIST Department of Mathematical Sciences
------- http://mathsci.kaist.ac.kr/~drake
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