#11903: fast_callable doesn't know about natural log
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Reporter: jason | Owner: burcin
Type: defect | Status: new
Priority: major | Milestone: sage-4.7.2
Component: symbolics | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Description changed by jason:
Old description:
> Apparently fast_callable doesn't know that there is a C log function, for
> some reason:
>
> {{{
> sage: f(x)=log(x)
> sage: g=fast_callable(f,vars=[x],domain=float)
> sage: g.python_calls()
> [log]
> }}}
>
> A quick glance at the source code indicates that the log function should
> be translated to the C equivalent. So maybe it's an issue with not
> recognizing the log for some reason.
New description:
Apparently fast_callable doesn't know that there is a C log function, for
some reason:
{{{
sage: version()
'Sage Version 4.7.2.alpha3, Release Date: 2011-09-28'
sage: f(x)=log(x)
sage: g=fast_callable(f,vars=[x],domain=float)
sage: g.python_calls()
[log]
}}}
A quick glance at the source code indicates that the log function should
be translated to the C equivalent. So maybe it's an issue with not
recognizing the log for some reason.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11903#comment:1>
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