On Sun, Apr 5, 2009 at 12:30 PM, Golam Mortuza Hossain
<gmhoss...@gmail.com> wrote:
>
> On Sun, Apr 5, 2009 at 4:05 PM, William Stein <wst...@gmail.com> wrote:
>>
>> On Sun, Apr 5, 2009 at 11:58 AM, rjf <fate...@gmail.com> wrote:
>>
>>> On Apr 5, 9:06 am, Golam Mortuza Hossain <gmhoss...@gmail.com> wrote:
>>>> Hi,
>>>>
>>>> On Sat, Apr 4, 2009 at 4:06 PM, Robert Bradshaw
>>> This does not seem to be true.
>>>
>>> I just ran Maxima on 'diff(f(x),x) and I got this:
>>>
>>> {d}\over{d\,x}}\,f\left(x\right)
>>>
>>>
>>> So if it uses \partial, it is because Sage is messing it up.
>>
>> You're right, it does not use partial for a single variable, even through
>> Sage.
>>
>> sage: m = maxima('integrate(sin(x^3),x)')
>> sage: m
>> 'integrate(sin(x^3),x)
>> sage: m._latex_()
>> '\\int {\\sin x^3}{\\;dx}'
>> sage: latex(integrate(sin(x^3),x))
>> \int {\sin x^3}{\;dx}
>
> May be I am missing something. Does typesetting of "diff" somehow
> depend on typesetting of "integrate"?
>
> If I try following in Sage (v3.4) I get "\partial" for function
> with single variable. So it could be due to maxima-interface of Sage,
> unless my sage installation is messed up.
> -------------------------------------------
> f(x) = function('f',x)
> latex(diff(f(x),x))
> ---
> {{{\it \partial}}\over{{\it \partial}\,x}}\,f\left(x\right)
> -----------------------------------------
Very good point! I just had a look and for some mysterious reason line 550 in
devel/sage/sage/interfaces/maxima.py
is
self._sendline(r":lisp (defun tex-derivative (x l r) (tex (if
$derivabbrev (tex-dabbrev x) (tex-d x '\\partial)) l r lop rop ))")
which means "change to use that partial when starting up any maxima interface".
I don't know why that is there or who wanted it.
william
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