Try using Python's `eval` function:
sage: eval('y+x>=0')
x + y >= 0
sage: type(eval('y+x>=0'))
<type 'sage.symbolic.expression.Expression'>
--
Benjamin Jones
benjaminfjo...@gmail.com
On Apr 24, 1:50 pm, tvn <nguyenthanh...@gmail.com> wrote:
> I can convert 'x + 5' to equivalent expression with SR() but can't do
> the same to 'x+5>= 0' . Is there other way ? Thanks
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