Hi Robert,

On Sat, 21 Nov 2009 15:20:34 -0800 (PST)
"[email protected]" <[email protected]> wrote:

> The following LaTeX exporession is not nice
> 
> sage: latex(x*(1/(x^2)+sqrt(x^7)))
> {(\sqrt{x^{7}} + \frac{1}{x^{2}})} x
> 
> far better would be
> 
> sage: latex(x*(1/(x^2)+sqrt(x^7)))
> {\left(\sqrt{x^{7}} + \frac{1}{x^{2}}\right)} x

I agree.

> Is the following code from pynac from file mul.cpp  responsible for
> converting product into LaTeX? What is wrong with this. code? I see
> some \left and \right, but these commands do not appear in output of
> latex command.
<snip code segment>

The problem was that add and mul objects in pynac printed normal
parenthesis around themselves even in latex mode. I fixed this problem,
along with the one reported in #7406:

http://trac.sagemath.org/sage_trac/ticket/7406

The last comment has a link to a new pynac package with instructions
on how to test things.


Thanks.

Burcin

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