On Wednesday, July 2, 2014 4:33:33 PM UTC-7, Chris Maness wrote:
>
>
> TypeError: unsupported operand parent(s) for '*': 'Symbolic Ring' and 
> '<type 'function'>' 
>
> This error is more concisely generated with:

 sage: x*n
TypeError: unsupported operand parent(s) for '*': 'Symbolic Ring' and 
'<type 'function'>'

and it's due to this fact:

sage: n
<function sage.misc.functional.numerical_approx>

i.e., if you don't define n then you'll have that n is a python function 
which cannot fruitfully be multiplied with a symbolic expression.

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