 
 
 
 
 
 
Re: ToExpression[..,TexForm] does not seem to work on
- To: mathgroup at smc.vnet.net
- Subject: [mg104392] Re: [mg104351] ToExpression[..,TexForm] does not seem to work on
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Fri, 30 Oct 2009 02:18:15 -0500 (EST)
- Reply-to: hanlonr at cox.net
I have version 7.0.1
$Version
7.0 for Mac OS X x86 (64-bit) (February 19, 2009)
s = TeXForm[Sum[f[n], {n, 1, m}]]
\sum _{n=1}^m f(n)
ToExpression["\\sum _{n=1}^m f(n)", TeXForm]
Sum[f[n], {n, 1, m}]
Bob Hanlon
---- "Nasser M. Abbasi" <nma at 12000.org> wrote: 
=============
From: "Bob Hanlon"
> Put a space after sum in the TeX
>
> s = TeXForm[Sum[f[n], {n, 1, m}]]
>
> \sum _{n=1}^m f(n)
>
> Note the space after sum in the above output
>
> ToExpression["\\sum _{n=1}^m f(n)", TeXForm]
>
> Sum[f[n], {n, 1, m}]
>
> ToExpression["\\sum _ {n=1}^m f(n)", TeXForm]
>
> Sum[f[n], {n, 1, m}]
>
>
> Bob Hanlon
>
hello;
I did.
With or without space, I get the same error. Which version you used? I am 
using version 7
In[1]:= ToExpression["\\sum _{n=1}^m f(n)", TeXForm]
During evaluation of In[1]:= ToExpression::esntx:Could not parse \sum 
_{n=1}^m f(n) as Mathematica input.
Out[1]= $Failed
Thanks
--Nasser

