Xaringan: Xaringan requires escaping of underscores for subscripts in math formulas in some cases

[kevinykuo]

# foo

This breaks

$$
f_N \circ f_{N-1}
$$

# bar

But this renders correctly

$$
f\_N \circ f_{N-1}
$$

[ekstroem]

When dollars appear it's a sign
that your code does not quite align
Ensure that your math
in xaringan hath
been placed on a single long line

Apologies for the lame pseudo-limerick. However, do try to use

$$f_N \circ f_{N-1}$$

(oh, and it's in the documentation)

[kevinykuo]

@ekstroem Thanks a bunch!

[yihui]

Haha, the limerick is funny! 😆

For the record, the documentation is here: https://slides.yihui.name/xaringan/#16