* how to insert fraction & integration
@ 2012-09-27 12:53 Supriya Sawant
2012-09-27 22:37 ` Bastien
0 siblings, 1 reply; 6+ messages in thread
From: Supriya Sawant @ 2012-09-27 12:53 UTC (permalink / raw)
To: emacs-orgmode
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how to insert fraction & integration in emacs .org file
eg. test.org
\frac{1}{2}
\sqrt{x^2-1}
when I export it into html using org-export-as-html it gives
test.html
\frac{1}{2}
\sqrt{x2-1}
I am new to org-mode.
can anyone tell me whether I am inserted equation in right way??
Thanks & Regards,
Supriya Pravin Sawant
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: how to insert fraction & integration
2012-09-27 12:53 how to insert fraction & integration Supriya Sawant
@ 2012-09-27 22:37 ` Bastien
2012-09-28 2:44 ` Nick Dokos
0 siblings, 1 reply; 6+ messages in thread
From: Bastien @ 2012-09-27 22:37 UTC (permalink / raw)
To: Supriya Sawant; +Cc: emacs-orgmode
Hi Supriya,
Supriya Sawant <sp.sawant14@gmail.com> writes:
> how to insert fraction & integration in emacs .org file
>
> eg. test.org
>
> \frac{1}{2}
> \sqrt{x^2-1}
>
> when I export it into html using org-export-as-html it gives
>
> test.html
>
> \frac{1}{2}
> \sqrt{x^2-1}
>
> I am new to org-mode.
> can anyone tell me whether I am inserted equation in right way??
Use the LaTeX syntax directly: $...$ to inline them and $$...$$ to
center them in the page. This works both in LaTeX and HTML.
#+TITLE: Test
$\frac{1}{2}$ and $\sqrt{x^2-1}$
or
$$\frac{1}{2}$$
$$\sqrt{x^2-1}$$
HTH,
--
Bastien
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: how to insert fraction & integration
2012-09-27 22:37 ` Bastien
@ 2012-09-28 2:44 ` Nick Dokos
2012-09-28 6:35 ` Bastien
0 siblings, 1 reply; 6+ messages in thread
From: Nick Dokos @ 2012-09-28 2:44 UTC (permalink / raw)
To: Bastien; +Cc: emacs-orgmode, Supriya Sawant
Bastien <bzg@altern.org> wrote:
> Hi Supriya,
>
> Supriya Sawant <sp.sawant14@gmail.com> writes:
>
> > how to insert fraction & integration in emacs .org file
> >
> > eg. test.org
> >
> > \frac{1}{2}
> > \sqrt{x^2-1}
> >
> > when I export it into html using org-export-as-html it gives
> >
> > test.html
> >
> > \frac{1}{2}
> > \sqrt{x^2-1}
> >
> > I am new to org-mode.
> > can anyone tell me whether I am inserted equation in right way??
>
> Use the LaTeX syntax directly: $...$ to inline them and $$...$$ to
> center them in the page. This works both in LaTeX and HTML.
>
> #+TITLE: Test
>
> $\frac{1}{2}$ and $\sqrt{x^2-1}$
>
> or
>
> $$\frac{1}{2}$$
>
> $$\sqrt{x^2-1}$$
>
This may work for org, but $$...$$ in particular does not work for
LaTeX. I would recommend that you don't use these delimiters: use \(
... \) for inlines and \[...\] for displays.
$$...$$ is plain TeX, not LaTeX, and according to Lamport (p. 233),
"... does not work properly." See also
http://www.tex.ac.uk/cgi-bin/texfaq2html?label=dolldoll
Nick
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: how to insert fraction & integration
2012-09-28 2:44 ` Nick Dokos
@ 2012-09-28 6:35 ` Bastien
2012-09-28 14:36 ` Nick Dokos
2012-09-28 17:03 ` Nicolas Richard
0 siblings, 2 replies; 6+ messages in thread
From: Bastien @ 2012-09-28 6:35 UTC (permalink / raw)
To: nicholas.dokos; +Cc: emacs-orgmode, Supriya Sawant
Hi Nick,
Nick Dokos <nicholas.dokos@hp.com> writes:
> $$...$$ is plain TeX, not LaTeX, and according to Lamport (p. 233),
> "... does not work properly." See also
>
> http://www.tex.ac.uk/cgi-bin/texfaq2html?label=dolldoll
$$...$$ worked for me for years in LaTeX (using tetex on GNU/Linux)
so I'm curious: is this FAQ entry still accurate? The web page says
"2012-03-29" but maybe that's just an automated time-stamp, not telling
whether this entry in particular is still relevant.
Anyway, thanks for the pointer, learning every day!
--
Bastien
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: how to insert fraction & integration
2012-09-28 6:35 ` Bastien
@ 2012-09-28 14:36 ` Nick Dokos
2012-09-28 17:03 ` Nicolas Richard
1 sibling, 0 replies; 6+ messages in thread
From: Nick Dokos @ 2012-09-28 14:36 UTC (permalink / raw)
To: Bastien; +Cc: emacs-orgmode, Supriya Sawant
Bastien <bzg@altern.org> wrote:
> Hi Nick,
>
> Nick Dokos <nicholas.dokos@hp.com> writes:
>
> > $$...$$ is plain TeX, not LaTeX, and according to Lamport (p. 233),
> > "... does not work properly." See also
> >
> > http://www.tex.ac.uk/cgi-bin/texfaq2html?label=dolldoll
>
> $$...$$ worked for me for years in LaTeX (using tetex on GNU/Linux)
> so I'm curious: is this FAQ entry still accurate? The web page says
> "2012-03-29" but maybe that's just an automated time-stamp, not telling
> whether this entry in particular is still relevant.
>
> Anyway, thanks for the pointer, learning every day!
>
I don't know for sure, but I presume it's still valid: I abandoned
$$...$$ many years ago after reading Lamport and have used \[...\]
ever since. The breakage seems subtle, so why chance it?
Nick
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: how to insert fraction & integration
2012-09-28 6:35 ` Bastien
2012-09-28 14:36 ` Nick Dokos
@ 2012-09-28 17:03 ` Nicolas Richard
1 sibling, 0 replies; 6+ messages in thread
From: Nicolas Richard @ 2012-09-28 17:03 UTC (permalink / raw)
To: emacs-orgmode
>>>>> "bzg" == Bastien <bzg@altern.org> writes:
bzg> Hi Nick, Nick Dokos <nicholas.dokos@hp.com> writes:
>> $$...$$ is plain TeX, not LaTeX, and according to Lamport (p.
>> 233), "... does not work properly." See also
>>
>> http://www.tex.ac.uk/cgi-bin/texfaq2html?label=dolldoll
bzg> $$...$$ worked for me for years in LaTeX (using tetex on
bzg> GNU/Linux) so I'm curious: is this FAQ entry still accurate?
bzg> The web page says "2012-03-29" but maybe that's just an
bzg> automated time-stamp, not telling whether this entry in
bzg> particular is still relevant.
It is, but the reasons are not so obvious. You can find some arguments
here :
<http://tex.stackexchange.com/questions/21173/display-math-deadly-sin-in-l2tabu>
In short :
- without amsmath (but who does not load amsmath?), vertical spacing is
wrong in some circumstances (which should never happen anyway : a
displayed equation can never begin a new paragraph), and
- with amsmath, some other problems remain, most notably the global
option "fleqn" (flush left equations) does not work.
In general, $$ should never be modified by any package, so if you load a
package that should do something with displayed equations, you'd better
not use $$ $$. Unfortunately I don't know which packages are in this
situation.
So, is it worth changing your code ? I personally never use $$ (nor \[ \]) (i)
because I like having meaningful environment names, (ii) because I was
taught not to use them, and (iii) because amsmath makes it easy to
change a environement into another (e.g. change between
numbered/unnumbered, or change between {equation} and {align}).
--
Nicolas.
^ permalink raw reply [flat|nested] 6+ messages in thread
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2012-09-27 12:53 how to insert fraction & integration Supriya Sawant
2012-09-27 22:37 ` Bastien
2012-09-28 2:44 ` Nick Dokos
2012-09-28 6:35 ` Bastien
2012-09-28 14:36 ` Nick Dokos
2012-09-28 17:03 ` Nicolas Richard
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