Re: HoldForm
- To: mathgroup at smc.vnet.net
- Subject: [mg76003] Re: [mg75968] HoldForm
- From: Andrzej Kozlowski <akoz at mimuw.edu.pl>
- Date: Mon, 14 May 2007 05:50:04 -0400 (EDT)
- References: <200705140739.DAA22935@smc.vnet.net>
On 14 May 2007, at 16:39, dimitris wrote:
> May be I will annoy a little Roman (I am just kiddin'!)
> but I have one question about HoldForm (and yes I am
> obsessed with it! No kiddin'! It's amazing!)
>
> I have
>
> In[19]:=
> f[x_] = Log[x]*x;
> lowerLim = 0; upperLim = Pi;
>
> Then
>
> In[20]:=
> o = HoldForm[Integrate[f[x], {x, lowerLim, upperLim}]]
>
> Out[20]=
> HoldForm[Integrate[f[x], {x, lowerLim, upperLim}]]
>
> However I want the output of Input[20] to be as Out[28]...
>
> In[28]:=
> HoldForm[Integrate[Log[x]*x, {x, 0, Pi}]]
>
> Out[28]=
> HoldForm[Integrate[Log[x]*x, {x, 0, Pi}]]
>
> Any ideas???
>
> Thanks a lot!
>
> Dimitris
>
>
I think the simplest solution (which probably is not what you want) is:
1) a simple substitution
o /. f[x] -> x*Log[x]
2) Alternatively, you can use this;
o = Integrate[TraditionalForm[f[x]], {x, lowerLim, upperLim}]
Of course I am assuming you are using TraditionalForm for output! If
not, replace TraditionalForm with StandardForm.
Note that to "release" TraditionalForm you can use:
o /. TraditionalForm -> Identity
Andrzej Kozlowski
- References:
- HoldForm
- From: dimitris <dimmechan@yahoo.com>
- HoldForm