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##### Activity
Lucas Werkmeister
@lucaswerkmeister
$\sum_{m=1}^\infty\sum_{n=1}^\infty\frac{m^2\,n} {3^m\left(m\,3^n+n\,3^m\right)}$
$u'' + p(x)u' + q(x)u=f(x),\quad x>a$
$|\bar{z}| = |z|, |(\bar{z})^n| = |z|^n, \arg(z^n) = n \arg(z)$
$\lim_{z\to z_0} f(z)=f(z_0)$
$\phi_n(\kappa) = \frac{1}{4\pi^2\kappa^2} \int_0^\infty \frac{\sin(\kappa R)}{\kappa R} \frac{\partial}{\partial R} \left [ R^2\frac{\partial D_n(R)}{\partial R} \right ] \,dR$
$\phi_n(\kappa) = 0.033C_n^2\kappa^{-11/3},\quad \frac{1}{L_0}\ll\kappa\ll\frac{1}{l_0}$
KaTeX parse error: No such environment: cases at position 20: =
\begin{cases}̲
1 & -1 \le x : f(x) =
\begin{cases}
1 & -1 \le x < 0 \\
\frac{1}{2} & x = 0 \\
1 - x^2 & \text{otherwise}
\end{cases}
KaTeX parse error: Expected 'EOF', got '\dots' at position 17: _pF_q(a_1,\dots̲,a_p;c_1,\dots: {}_pF_q(a_1,\dots,a_p;c_1,\dots,c_q;z)
= \sum_{n=0}^\infty
\frac{(a_1)_n\cdots(a_p)_n}{(c_1)_n\cdots(c_q)_n}
\frac{z^n}{n!}
$\frac{a}{b}\ \tfrac{a}{b}$
$S=dD\,\sin\alpha\!$
$V = \frac 16 \pi h \left [ 3 \left ( r_1^2 + r_2^2 \right ) + h^2 \right ]$
KaTeX parse error: No such environment: align at position 13: \begin{align}̲
u & = \tfrac{: \begin{align}
u & = \tfrac{1}{\sqrt{2}}(x+y) \qquad & x &= \tfrac{1}{\sqrt{2}}(u+v) \\
v & = \tfrac{1}{\sqrt{2}}(x-y) \qquad & y &= \tfrac{1}{\sqrt{2}}(u-v)
\end{align}

You can switch between the HTML and MathML versions by locating this style snippet

.katex .katex-html {
display:none;
}
.katex .katex-mathml {
display:inline-block;
}

in your browser’s dev tools and swapping the displays.

Tako Schotanus
@quintesse
The parse errors are supposed to be there?
Ah I guess you're just testing what exactly is supported and what not, right?
Lucas Werkmeister
@lucaswerkmeister
yeah I just copied the equations from Wikipedia
I’m actually surprised how many of them work
Tako Schotanus
@quintesse
Do yu get the weird visual behaviour where the lower part of an equals sign is a slight gray color instead of black?
Gavin King
@gavinking
yeah, ok, they look pretty decent
Lucas Werkmeister
@lucaswerkmeister
@quintesse no
Tako Schotanus
@quintesse
weird, here all equals sign are one part gray one part black, all the rest looks okay
Gavin King
@gavinking
ok, very good, and what is that implemented in?
Lucas Werkmeister
@lucaswerkmeister
JS
Gavin King
@gavinking
@quintesse i don’t get that
client-side js?
Lucas Werkmeister
@lucaswerkmeister
yes
but server-side also works according to KaTeX README
Gavin King
@gavinking
well we want client-side i guess
Tako Schotanus
@quintesse
Gavin King
@gavinking
so that should be really easy to integrate with ceylon doc
Lucas Werkmeister
@lucaswerkmeister
@quintesse very odd, this uses web fonts (KaTeX_Main-Regular, KaTeX_Math-Italic, KaTeX_Size1-Regular here), should look the same for everyone
Gavin King
@gavinking
@lucaswerkmeister send us a patch :)
Lucas Werkmeister
@lucaswerkmeister
@gavinking don’t count on it, Bachelor’s Thesis has higher priority and still much to do :/
Gavin King
@gavinking
heh
Lucas Werkmeister
@lucaswerkmeister
oh, looks like KaTeX is actively developed too
cases environment didn’t work above
but apparently it was implemented recently
Khan/KaTeX#278
Khan/KaTeX@758bdba
Gitter just doesn’t have it yet, I assume
so that’s nice
Gavin King
@gavinking
i don’ know latex at all
Lucas Werkmeister
@lucaswerkmeister
KaTeX parse error: Expected 'EOF', got '\LaTeX' at position 6: \LaTeX̲: \LaTeX
Tako Schotanus
@quintesse
are those parse errors supposed to be there?
Lucas Werkmeister
@lucaswerkmeister
no, that’s why I’m experimenting in here, where no one’s supposed to see them!
Tako Schotanus
@quintesse
:-p
Well Big Brother is watching you!
Lucas Werkmeister
@lucaswerkmeister
wtf, there’s a $\KaTeX$, but no \LaTeX Khan/KaTeX#224
buncha egoists ;)