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How do I learn more about how to do the math symbols in markup? Is there a way to see the raw markup on posts?
It's not really markup, it's MathJax.
Mathjax supports different syntaxes: MathML, TeX, and ASCIImath.
I use TeX. There are plenty of tutorials on how to write equations in TeX.
$$ a^3 + \sqrt{3} + \frac{1}{a+\hbar}+\int_{i=1}^a \exp{(iax)} dx < \infty $$
for instance will yield
I did not test MathML and ASCIImath here yet.
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Single dollar signs work in latex but not in mathjax. Probably because single dollar sign is too common in regular html
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Oh really? I think I already used it too.
Let's try. $\sqrt{2}$ (single dollar, inline) and double dollar (block equation):
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Oh, hmm. The implementation I use in my website doesn't allow single dollar signs.
It's actually probably better that way, since I've seen dollar signs mess up other peoples' posts here.
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SN's newest update deactivated single dollar signs... As can be seen here :)
Let's try the alternative for inline equation: ( \sqrt{3} )
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I believe double dollar signs works for
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Really ?
Indeed
Oh, let me know when that happens. It's probably something easy to address in the settings of the MathJax library used here.
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In TeX, single $ means "change to math typesetting mode" (treat it as"inline" math). The double $$ is similar, just it typesets it as a separate block of math/figure (it adds alignment, spacing, etc.).
I'd expect similar behaviour.
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