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