On 1/17/12 12:11 PM, William Stein wrote:
On Jan 17, 2012 10:06 AM, "Jason Grout" <jason-s...@creativetrax.com <mailto:jason-s...@creativetrax.com>> wrote: > > On 1/17/12 12:01 PM, William Stein wrote: > >> Nils example is interesting though, since it suggests using SR.var >> instead of var in preparsing callable symbolic function creation. >> E.g., instead of >> >> sage: preparse('f(x) = 10*x') >> '__tmp__=var("x"); f = symbolic_expression(Integer(10)*x).function(x)' >> >> do >> >> sage: preparse('f(x) = 10*x') >> '__tmp__=SR.var("x"); f = symbolic_expression(Integer(10)*x).function(x)' > > > Wouldn't that need to be: > > 'x=SR.var("x"); f = symbolic_expression(Integer(10)*x).function(x)' > > since x is not injected into the namespace then? > I think it should be __tmp__ on the right instead of x.
If you used x, then you'd automatically have injection in the *local* namespace.
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