On 4/19/12 8:24 AM, Graham Gerrard wrote:
z="1/2*x"
x=3
eval(z)
0
z="x*1/2"
eval(z)
3/2
The problem is that you are using eval, but should be using sage_eval.
eval is a python command that uses python integers, rather than Sage
integers and rationals.
sage: eval("1/2")
0
sage: sage_eval("1/2")
1/2
Thanks,
Jason
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