On Fri, Jun 19, 2015 at 08:13:45AM +0000, Guenter Milde wrote:
> On 2015-06-19, Scott Kostyshak wrote:
> > We have all of the information/patches needed to resolve the following
> > ticket: http://www.lyx.org/trac/ticket/2342
>
> > What should we export for plain text for math? For example, if we have a
> > math inset with $\delta$ what should be exported?
>
> > I see the following options:
>
> > 1. \delta (current behavior)
> > 2. $\delta$ (Enrico's proposed behavior)
> > 3. delta
>
> 4. δ 03B4 GREEK SMALL LETTER DELTA
> 5. 𝛥 1D6E5 MATHEMATICAL ITALIC CAPITAL DELTA
>
> Matching Unicode characters can be determined from the "mathcommand" in
> "unicodesymbols". This would also work for many non-alphabetical symbols
> like arrows and operators.
>
> > I have mixed opinions. The reason why I originally liked option (1) is
> > because $U$-shaped was exported as U-shaped. I could easily copy the
> > abstract of my paper and paste that into a text box for submission of an
> > abstract to a conference.
>
> I would argue, that $U$-shaped is wrong use of a formula inset in the first
> place (unless this is not in the common sense of "shaped like a letter U" but
> you define a variable $U$ for the shape of an object earlier in your text
> and use it then).
>
> There are many such cases of "formula for text styling", like "20 $\mu$m"
> (locigally and visually wrong, because the SI-prefix µ is a constant
> factor and (like any physical unit) must be written upright, not italic).
>
> > However, for cases such as $\delta$, I am not so sure. Option (1) seems
> > strange because it is hybrid LaTeX.
>
> > Any thoughts?
>
> It really depends on the use case. Some examples:
>
> * (1) is a simple, informal representation for humans familiar with LaTeX
> syntax. Problematic for programmatic post-processing of the text.
>
> * (2) Can be annoying/hard to read/, but is correct and predictable.
> would fit nice when dropping the text into a text box of a page using
> MathJax or a reStructuredText text (rST would requqire to change the
> $ $ into :math:` ` but otherwise uses LaTeX syntax for maths).
>
> Should formulas that can be easily expressed in text
> like "2x" be wrapped in $$, too?
>
> * (4) Is preferred if the text encoding is Unicode and there is a "normal"
> international text font (with Greek but no mathematical alphanumerical
> characters).
>
> * (5) Is preferred if the text encoding is Unicode and the target
> device/program has access to a "mathematical" font that includes the
> mathematical symbols.
What about the attached example? I fail to see how something different
than (2) can be used. It currently is pasted as
f(x) =\int_{0}^{x}f(y)dy
s =(\begin{array}{cc}
a & b\end{array})\left(\begin{array}{c}
c\\
d
\end{array}\right)
--
Enrico
#LyX 2.1 created this file. For more info see http://www.lyx.org/
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\begin_inset Formula
\begin{align*}
f(x) & =\int_{0}^{x}f(y)dy\\
s & =(\begin{array}{cc}
a & b\end{array})\left(\begin{array}{c}
c\\
d
\end{array}\right)
\end{align*}
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