My internal mathematician wishes there was more substance in this particular portion.

• Use of \(LaTeX\)
• annotating the breakdown of logic in problems
• providing missing context
• filling in details of problems left as an exercise for the student
• others?

**The Cauchy-Schwarz Inequality** $$\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)$$

This sentence uses $ delimiters to show math inline: $\sqrt{3x-1}+(1+x)^2$

```latex Start slowly and then increase in ascending until you reach the forte, then decrease in descending until you reach the piano. Then repeat the scales (always in groups of three) with the colors in reverse, that is to start strong and decrease ifno to the floor in ascending, then increase to the strong in descending.\begin{lilypond} \header { title = "C Major Scale" }\layout { \context { \Voice \consists "Horizontal_bracket_engraver" } } \relative c' {

\clef F c,4-1\p\<\startGroup_\markup{gr. 3} d-2 e-3\stopGroup f-1\startGroup_\markup{gr. 4} g-2 a-3 b-4 \stopGroup \clef G c4-1\startGroup_\markup{gr. 3} d-2 e-3\stopGroup f-1\startGroup_\markup{gr. 4} g-2 a-3 b-4\stopGroup c-1\startGroup_\markup{gr. 3} d-2 e-3\stopGroup f-1\startGroup_\markup{gr. 4+1} g-2 a-3 b-4 c-5\f!\stopGroup b-4>\startGroup_\markup{gr. 4} a-3 g-2 f-1\stopGroup e-3\startGroup_\markup{gr. 3} d-2 c-1\stopGroup b-4\startGroup_\markup{gr. 4} a-3 g-2 f-1\stopGroup e-3\startGroup_\markup{gr. 3} d-2 c-1\stopGroup \clef F b-4\startGroup_\markup{gr. 4} a-3 g-2 f-1\stopGroup e-3\startGroup_\markup{gr. 3} d-2 c-1\p!\stopGraceMusic r } \end{lilypond}Perform loudly with the right hand and softly with the left hand, then vice versa. Then switch the \textit{crescendo} and \textit{diminuendo} between the two hands. ```

latex Inline music fragment insertion test: \lilypond{\new RhythmicStaff { \time 3/4 c4( c16) c c c c c c c \bar "|."}}

https://ar5iv.org/

Someone is cleverly converting arXiv pages into responsive HTML5.

View any arXiv article URL by changing the X to a 5

有关 Latex 排版的文章

A tool mentioned by Alex Enkerli at I Annotate 2021.

<small><cite class='h-cite via'>ᔥ <span class='p-author h-card'>hyperlink.academy</span> in The Future of Textbooks (<time class='dt-published'>03/18/2021 23:54:19</time>)</cite></small>

This looks like something I could integrate into my workflow.

Some examples of using \( \LaTeX \) in R Markdown documents

Latex files can do version control vs word files

Yet, how many / which ones are offering up-to-date .tex or similar templates?

Sounds like Norman’s Law.

Sounds like separating content from format (à la \(LaTeX\)) and there are interesting parallels between annotations, metadata, and formatting. All of these can be described as “layers”, in the common metaphor.

.\footnote

Testing out PDF annotation that also include LaTeX rendered formulas.