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Re: subscripts and strings
*To*: mathgroup at smc.vnet.net
*Subject*: [mg28326] Re: subscripts and strings
*From*: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
*Date*: Wed, 11 Apr 2001 02:01:04 -0400 (EDT)
*Organization*: Universitaet Leipzig
*References*: <9arhrk$q8o@smc.vnet.net>
*Sender*: owner-wri-mathgroup at wolfram.com
Hi,
water = {Subscript[H, 2], O}
StringReplace[
ToString[TeXForm[water]], {"," -> "", "\\" -> "", "{" -> "", "}" ->
""}]
??
Regards
Jens
Matt.Johnson at autolivasp.com wrote:
>
> Hello everybody...
>
> Here's something quirky...suppose I have some subscripted variables. Then,
> I want to combine these into a string, such as in a chemical formula. So I
> have the element names subscripted by the number of atoms, such as
> water={Subscript[H,2],O}
>
> then I want to combine the list into a string, H_2O (let the underscore
> denote a subscript). This is where I run into problems. For some reason,
> when ToString is mapped through the list, Mathematica interperets the subscripts as
> newlines. So the question is, either how do I get the subscripted element
> expression to be a string, or is there another way to combine these
> altogether?
>
> Thanks,
>
> -matt
>
> Here's a quick synopsis:
>
> In[41]:=
> \!\(\(list = {s\_1, s\_2, s\_3};\)\n
> StringJoin[list]\)
> \!\(List::"string" \(\(:\)\(\ \)\)
> "String expected at position \!\(1\) in \!\({s\_1, s\_2, s\_3}\)."\)
> \!\(List::"string" \(\(:\)\(\ \)\)
> "String expected at position \!\(2\) in \!\({s\_1, s\_2, s\_3}\)."\)
> \!\(List::"string" \(\(:\)\(\ \)\)
> "String expected at position \!\(3\) in \!\({s\_1, s\_2, s\_3}\)."\)
> General::"stop": "Further output of \!\(List :: \"string\"\) will be \
> suppressed during this calculation."
> Out[42]=
> \!\(s\_1 <> s\_2 <> s\_3\)
> In[43]:=
> StringJoin[ToString /@ list]
> Out[43]=
> "s\n 1s\n 2s\n 3"
> In[44]:=
> % // InputForm
> Out[44]//InputForm=
> "s\n 1s\n 2s\n 3"
> In[45]:=
> \!\(\(list2 = {\*"\"\<\!\(s\_1\)\>\"", \*"\"\<\!\(s\_2\)\>\"", \
> \*"\"\<\!\(s\_3\)\>\""};\)\[IndentingNewLine]
> StringJoin[list2]\)
> Out[46]=
> \!\("\!\(s\_1\)\!\(s\_2\)\!\(s\_3\)"\)
> In[47]:=
> InputForm[%]
> Out[47]//InputForm=
> "\!\(s\_1\)\!\(s\_2\)\!\(s\_3\)"
>
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