mhchem
What do I miss?
A more convenient way to typeset chemical formulas is to use the command
\ce that is available when the LATEX-package mhchem is installed. After
inserting \ce to a formula a new blue box appears where chemical
formulas can be inserted in an intuitive way.
I inserted \usepackage{mhchem} in the preamble!
\ceCO2
\ce CO2
\ce CO2
no blue box appears
I found >
\usepackage[version=3]{mhchem}
But still no correct output
Wolfgang
hchem-version3.lyx
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Re: Fwd: missing \usepackage{mhchem} in helpfile Math.lyx
Am Samstag, dem 02.04.2022 um 18:00 +0200 schrieb Wolfgang Engelmann
via lyx-users:
> Do I need to insert \usepackage{mhchem} in the preamble?
No.
Jürgen
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Re: Fwd: missing \usepackage{mhchem} in helpfile Math.lyx
Am 02.04.22 um 17:54 schrieb Jürgen Spitzmüller via lyx-users:
Am Samstag, dem 02.04.2022 um 17:29 +0200 schrieb Wolfgang Engelmann
via lyx-users:
You say, I do not need to load it?
No. Why do you think you should? The note only say it needs to be
installed, not manually loaded.
Jürgen
Do I need to insert \usepackage{mhchem} in the preamble?
Wolfgang
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Re: Fwd: missing \usepackage{mhchem} in helpfile Math.lyx
Am Samstag, dem 02.04.2022 um 17:29 +0200 schrieb Wolfgang Engelmann via lyx-users: > You say, I do not need to load it? No. Why do you think you should? The note only say it needs to be installed, not manually loaded. Jürgen signature.asc Description: This is a digitally signed message part -- lyx-users mailing list lyx-users@lists.lyx.org http://lists.lyx.org/mailman/listinfo/lyx-users
Re: Fwd: missing \usepackage{mhchem} in helpfile Math.lyx
Am 02.04.22 um 17:24 schrieb Jürgen Spitzmüller via lyx-users:
Am Samstag, dem 02.04.2022 um 16:57 +0200 schrieb Wolfgang Engelmann
via lyx-users:
However, I could not find \usepackage{mhchem} in this helpfile
Math.lyx
Is this intentional? Or included in another \usepackage?
I see in the source preview of this manual:
\PassOptionsToPackage{version=3}{mhchem}
\usepackage{mhchem}
Note that mhchem is loaded automatically. Did you only look in the user
preamble?
Yes, Jürgen. I wanted to make sure that mhchem is working.
You say, I do not need to load it?
Wolfgang
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Re: Fwd: missing \usepackage{mhchem} in helpfile Math.lyx
Am Samstag, dem 02.04.2022 um 16:57 +0200 schrieb Wolfgang Engelmann
via lyx-users:
> However, I could not find \usepackage{mhchem} in this helpfile
> Math.lyx
> Is this intentional? Or included in another \usepackage?
I see in the source preview of this manual:
\PassOptionsToPackage{version=3}{mhchem}
\usepackage{mhchem}
Note that mhchem is loaded automatically. Did you only look in the user
preamble?
Jürgen
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Fwd: missing \usepackage{mhchem} in helpfile Math.lyx
In the helpfile Math.lyx it is stated:
To export this document to PDF, PS or DVI the LaTeX-packages braket,
cancel, eurosym, mathdots, mathtools, mhchem, undertilde and was should
be installed. If they are not installed the document can be exported
anyway but the sections where the packages are required will not appear
in the output. An exception is mhchem; if it is not installed, this file
cannot be exported.
The latest PDF-version of this document can be found
here:https://wiki.lyx.org/LyX/Manuals#Math
However, I could not find \usepackage{mhchem} in this helpfile Math.lyx
Is this intentional? Or included in another \usepackage?
Wolfgang
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Re: LyX & mhchem package?
Ok, preview is now working with Tools > Preferences > Look & Feel > Display > Instant preview on Am 09.08.2016, 21:12 Uhr, schrieb Bernt Lie It is weird. I get preview of I open a new standard LaTeX book document. Hm… need to experiment more… --- With best regards/hilsen Bernt Lie, professor University College of Southeast Norway www.usn.no
RE: LyX & mhchem package?
It is weird. I get preview of I open a new standard LaTeX book document. Hm… need to experiment more… --- With best regards/hilsen Bernt Lie, professor University College of Southeast Norway www.usn.no From: Jürgen Lange<mailto:juergen.la...@unitybox.de> Sent: Tuesday, August 9, 2016 19:25 To: lyx-users@lists.lyx.org<mailto:lyx-users@lists.lyx.org> Subject: Re: LyX & mhchem package? Your are right. mhchem is also available in math mode. I can confirm, that there is no preview. Regards Am 09.08.2016, 18:57 Uhr, schrieb Bernt Lie Thanks for comment. I’m still confused: Ø This has nothing to do with the math mode. It must have something to do with math mode!?! · The feature is described in LyX’s Math Help document (section 20 of LyX’s detailed Math manual for LyX v. 2.2.x) · As far as I can see, LyX’s Math Help document has *not* included the statement you suggest in its Preamble. Instead, it has specified “Load automatically” package “mhchem” under “Math Options” in the Document Settings. · In the Math Help document, it is stated “After inserting \ce to a formula a new blue box appears where chemical formulas can be inserted in an intuitive way”. I assume that “to a formula” refers to a math formula??! · In Martin Hensel’s document “The mhchem Bundle” dated August 8, 2016, he states about his package that “This works in text mode (even in headings) and in math mode.” By playing around with my document, it seems like the chemical expressions are correctly typeset in the pdf file both if I insert the \ce expressions in TeX code, and in math mode. However, my *problem* is that in *my* document, the chemical formulas do not *preview* within LyX, while in LyX’s Math Help document, the correct typesetting seems to *preview* within LyX. · WHY this difference? · (Could it be that my document is based on LaTeX Book style, while LyX’s documentation uses KOMA-script document styles??) -Bernt L.
Re: LyX & mhchem package?
Your are right. mhchem is also available in math mode. I can confirm, that there is no preview. Regards Am 09.08.2016, 18:57 Uhr, schrieb Bernt Lie Thanks for comment. I’m still confused: Ø This has nothing to do with the math mode. It must have something to do with math mode!?! · The feature is described in LyX’s Math Help document (section 20 of LyX’s detailed Math manual for LyX v. 2.2.x) · As far as I can see, LyX’s Math Help document has *not* included the statement you suggest in its Preamble. Instead, it has specified “Load automatically” package “mhchem” >under “Math Options” in the Document Settings. · In the Math Help document, it is stated “After inserting \ce to a formula a new blue box appears where chemical formulas can be inserted in an intuitive way”. I assume that “to >a formula” refers to a math formula??! · In Martin Hensel’s document “The mhchem Bundle” dated August 8, 2016, he states about his package that “This works in text mode (even in headings) and in math mode.” By playing around with my document, it seems like the chemical expressions are correctly typeset in the pdf file both if I insert the \ce expressions in TeX code, and in math mode. However, my *problem* is that in *my* document, the chemical formulas do not *preview* within LyX, while in LyX’s Math Help document, the correct typesetting seems to >*preview* within LyX. · WHY this difference? · (Could it be that my document is based on LaTeX Book style, while LyX’s documentation uses KOMA-script document styles??) -Bernt L.
RE: LyX & mhchem package?
Hi
Thanks for comment. I’m still confused:
Ø This has nothing to do with the math mode.
It must have something to do with math mode!?!
· The feature is described in LyX’s Math Help document (section 20 of
LyX’s detailed Math manual for LyX v. 2.2.x)
· As far as I can see, LyX’s Math Help document has *not* included the
statement you suggest in its Preamble. Instead, it has specified “Load
automatically” package “mhchem” under “Math Options” in the Document Settings.
· In the Math Help document, it is stated “After inserting \ce to a
formula a new blue box appears where chemical formulas can be inserted in an
intuitive way”. I assume that “to a formula” refers to a math formula??!
· In Martin Hensel’s document “The mhchem Bundle” dated August 8, 2016,
he states about his package that “This works in text mode (even in headings)
and in math mode.”
By playing around with my document, it seems like the chemical expressions are
correctly typeset in the pdf file both if I insert the \ce expressions in TeX
code, and in math mode.
However, my *problem* is that in *my* document, the chemical formulas do not
*preview* within LyX, while in LyX’s Math Help document, the correct
typesetting seems to *preview* within LyX.
· WHY this difference?
· (Could it be that my document is based on LaTeX Book style, while LyX’s
documentation uses KOMA-script document styles??)
-Bernt L.
From: lyx-users@lists.lyx.org [mailto:lyx-users@lists.lyx.org] On Behalf Of
Jürgen Lange
Sent: Tuesday, August 9, 2016 18:01
To: lyx-users@lists.lyx.org
Subject: Re: LyX & mhchem package?
Hi,
you should put in the Preamble (Preferences, last entry) the following code:
\usepackage[version=4]{mhchem}
To insert the code (\ce{H2O}, please use (Main menu) Insert > TeX Code (red
box).
Then create pdf.
This has nothing to do with the math mode.
Regards
Jürgen
Am 09.08.2016, 16:41 Uhr, schrieb Bernt Lie
I’m new to LyX, and try to typeset chemical formulae using package mhchem. It
is not quite clear from “LyX’s detailed Math manual” of July 5, 2016 how to use
mhchem, though.
Preliminaries:
· I use Windows 10 + LyX 2.2.1
· I *assume* that package mhchem is installed when I specify to “Load
always” “mhchem” under Math Options of the Document Settings. [The
documentation recommends that “the LaTeX-package mhchem is installed” – but
assumes that the user knows how to install the package.]
· From the log when I typeset the document, it appears as if package
mhchem, version 4.04 is used.
Problem:
· I have assumed that the command “\ce” is to be used in math mode, i.e.,
first use Ctrl+m to switch to math mode, then type “\ce “ (including the space
after “\ce”) to get the “new blue box” that is mentioned in section 20, p. 57
of document “LyX’s detailed Math manual”.
· Assume that I want to typeset the chemical symbol for water, H2O – but
with the number (“2”) in subscript.
· So I type Ctrl+m, and then “\ce “, and then “H2O”... but it does not
preview as H_2O. Shouldn’t it? Is it only in the output/PDF file that I see it
correctly typeset?
· According to Martin Hensel’s documentation for mhchem, version 4.05, I
can also typeset chemical expressions in text mode. I assume that I have to
insert the “\ce{xxx}” expression into a TeX code to achieve this?
Thanks!
-Bernt L.
Re: LyX & mhchem package?
Hi,
you should put in the Preamble (Preferences, last entry) the following
code: \usepackage[version=4]{mhchem}
To insert the code (\ce{H2O}, please use (Main menu) Insert > TeX Code
(red box).
Then create pdf.
This has nothing to do with the math mode.
Regards
Jürgen
Am 09.08.2016, 16:41 Uhr, schrieb Bernt Lie
I’m new to LyX, and try to typeset chemical formulae using package
mhchem. It is not quite clear from “LyX’s detailed Math manual” of July
5, 2016 how to use mhchem, though.
Preliminaries:
· I use Windows 10 + LyX 2.2.1
· I *assume* that package mhchem is installed when I specify to
“Load always” “mhchem” under Math Options of the Document Settings. [The
documentation recommends that >“the LaTeX-package mhchem is installed” –
but assumes that the user knows how to install the package.]
· From the log when I typeset the document, it appears as if
package mhchem, version 4.04 is used.
Problem:
· I have assumed that the command “\ce” is to be used in math
mode, i.e., first use Ctrl+m to switch to math mode, then type “\ce “
(including the space after “\ce”) to get the >“new blue box” that is
mentioned in section 20, p. 57 of document “LyX’s detailed Math manual”.
· Assume that I want to typeset the chemical symbol for water,
H2O – but with the number (“2”) in subscript.
· So I type Ctrl+m, and then “\ce “, and then “H2O”... but it
does not preview as H_2O. Shouldn’t it? Is it only in the output/PDF
file that I see it correctly typeset?
· According to Martin Hensel’s documentation for mhchem, version
4.05, I can also typeset chemical expressions in text mode. I assume
that I have to insert the “\ce{xxx}” >expression into a TeX code to
achieve this?
Thanks!
-Bernt L.
LyX & mhchem package?
I'm new to LyX, and try to typeset chemical formulae using package mhchem. It
is not quite clear from "LyX's detailed Math manual" of July 5, 2016 how to use
mhchem, though.
Preliminaries:
* I use Windows 10 + LyX 2.2.1
* I *assume* that package mhchem is installed when I specify to "Load
always" "mhchem" under Math Options of the Document Settings. [The
documentation recommends that "the LaTeX-package mhchem is installed" - but
assumes that the user knows how to install the package.]
* From the log when I typeset the document, it appears as if package
mhchem, version 4.04 is used.
Problem:
* I have assumed that the command "\ce" is to be used in math mode,
i.e., first use Ctrl+m to switch to math mode, then type "\ce " (including the
space after "\ce") to get the "new blue box" that is mentioned in section 20,
p. 57 of document "LyX's detailed Math manual".
* Assume that I want to typeset the chemical symbol for water, H2O -
but with the number ("2") in subscript.
* So I type Ctrl+m, and then "\ce ", and then "H2O"... but it does not
preview as H_2O. Shouldn't it? Is it only in the output/PDF file that I see it
correctly typeset?
* According to Martin Hensel's documentation for mhchem, version 4.05,
I can also typeset chemical expressions in text mode. I assume that I have to
insert the "\ce{xxx}" expression into a TeX code to achieve this?
Thanks!
-Bernt L.
Trick using the mhchem package
Hello, in chemical equations one sometimes want to write that a substance goes away into the air. Commonly an uprising arrow after the molecule is used to indicate that. With the mhchem package you have to use the ^ for this purpose. But in the math-mode in LyX this is used to upraise a character. Nevertheless the arrow is made as long as the upraising box exists. Unfortunately this box disappears if nothing is inside. Here is the trick making LyX to do it right: Write \, into the upraising box. Karl
Re: Bug mhchem-Czech
Am 13.03.2013 03:11, schrieb Jürgen Lange:
have you seen the attached lyx and pdf file?
The bug is, that mhchem in lyx does not format the symbolic arrow -> to a
chemical reaction arrow.
The latex code in lyx is \ce{->} as shown in lyx file.
In attachment an example of a correct formatted arrow in a pure English
document (without Czech).
Please compare both pdf outputs. Do you see the difference?
Now I see. I tested now all languages and the problem only occurs for Czech and Slovak. Could you
please inform the package author of mhchem about this bug? (if you like CC me)
thanks and regards
Uwe
Re: mhchem and html
Richard Heck comcast.net> writes: > It should be fairly easy to fix this. Please try to say, as best you can > in the bug report, exactly what the output should be like. Posting an > example file that contains all the main constructs would be especially > helpful. Will do! And thank you all for your help! --eric
Re: mhchem and html
On 11/18/2011 01:00 PM, Julien Rioux wrote: > On 18/11/2011 12:29 PM, Richard Heck wrote: >> In the meantime, you can force LyX to output images for these >> constructs, instead of MathML or whatever, by (I think) including a >> "\relax" somewhere in the formula. LyX won't know what to do with that, >> so it will fall back to outputting images. > > I seem to recall a setting somewhere to enforce the use of images, am > I wrong? > That's a global setting. Ultimately, I'd like to have such a setting formula by formula, but that's obviously a format change, so it's for 2.1.0. This little trick lets you get the same effect, since LyX always falls back to image output if it encounters something it doesn't understand. I guess it must think it does understand mhchem stuff Richard
Re: mhchem and html
On 18/11/2011 12:29 PM, Richard Heck wrote: In the meantime, you can force LyX to output images for these constructs, instead of MathML or whatever, by (I think) including a "\relax" somewhere in the formula. LyX won't know what to do with that, so it will fall back to outputting images. I seem to recall a setting somewhere to enforce the use of images, am I wrong? -- Julien
Re: mhchem and html
On 11/18/2011 02:55 AM, Guenter Milde wrote: On 2011-11-18, eric katz wrote: I've found the mhchem module from CTAN to be very useful for writing chemical equations. It works beautifully for pdf output. However, when I export to HTML, it looks like the mhchem codes don't get interpreted at all. I get things like: "\ceNa +" and "\ceNO3 −" right in the text, instead of formatted chemistry. The rest of the document comes out looking very nice; mathematical equations look great. Can it be fixed? File a bug report for the LyxHTML converter. It should be fairly easy to fix this. Please try to say, as best you can in the bug report, exactly what the output should be like. Posting an example file that contains all the main constructs would be especially helpful. In the meantime, you can force LyX to output images for these constructs, instead of MathML or whatever, by (I think) including a "\relax" somewhere in the formula. LyX won't know what to do with that, so it will fall back to outputting images. Richard
Re: mhchem and html
On 2011-11-18, eric katz wrote: > I've found the mhchem module from CTAN to be very useful for writing > chemical equations. It works beautifully for pdf output. However, when > I export to HTML, it looks like the mhchem codes don't get interpreted > at all. I get things like: "\ceNa +" and "\ceNO3 −" right in the > text, instead of formatted chemistry. The rest of the document comes > out looking very nice; mathematical equations look great. > I'm using Lyx v. 2.0.0 on an Ubuntu (11.11) machine. I get the same > problem, whether I'm using the "LyxHTML" exporter or the "HTML" > exporter. > What am I doing wrong? It is just that the mhchem package is not supported (yet) by the LyX->HTML converters. > Can it be fixed? File a bug report for the LyxHTML converter. Assuming that you use eLyXer as external converter, you might: * try a different converter (e.g.tex4ht) * report the problem to the elyxer author. Günter
mhchem and html
Hello, I've found the mhchem module from CTAN to be very useful for writing chemical equations. It works beautifully for pdf output. However, when I export to HTML, it looks like the mhchem codes don't get interpreted at all. I get things like: "\ceNa +" and "\ceNO3 −" right in the text, instead of formatted chemistry. The rest of the document comes out looking very nice; mathematical equations look great. I'm using Lyx v. 2.0.0 on an Ubuntu (11.11) machine. I get the same problem, whether I'm using the "LyxHTML" exporter or the "HTML" exporter. What am I doing wrong? Is it a Lyx problem, an mhchem problem or an HTML-conversion problem? Can it be fixed? Thank you in advance for your help! --eric
