On Saturday, October 20, 2012 11:30:03 AM UTC-4, Sebastien Gouezel wrote:
>
> When trying to latex-print symbolic functions, I have seen the following
> weird behavior:
>
> sage: P=function('P',x)
> sage: latex(P(x=sin(0)))
> Traceback (click to the left of this block for traceback)
> ...
> AttributeError: 'int' object has no attribute '_latex_'
>
> The superficial reason for this behavior is that, if a symbolic function
> has arguments without a _latex_ attribute, then its latex printing
> fails. This is easy to fix, I have written a (very easy to review) patch
> in TRAC 13632.
>
Nice. I've put a couple (possibly silly) comments there.
>
> However, the deeper reason is that, even when 0 is a sage integer,
> sin(0) is a Python integer:
>
> sage: type(sin(0))
> <type 'int'>
>
> I was wondering if this behavior was by design, or how it could be fixed.
>
Not by design. I could have sworn that we already had some ticket open for
this (and had fixed some cases)... oh yeah,
http://trac.sagemath.org/sage_trac/ticket/10133 . Help is welcome! Looks
like the fix isn't too bad, according to the notes there.
- kcrisman
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