docs: 📝 enhance readability of KaTeX (#2)

[JamesNZL]

Description

• Closes Enhance KaTeX in lecture slides #2

Main Changes

1. Uses \text{L} to distinguish between $\text{L}$ for 'load', and $L$ for an inductor

   • $v_\text{L}$ for load voltage
   • $v_L$ for inductor voltage

2. Replaces one-line / fractions with \frac when possible

3. \mathit{p.f.} to avoid extra whitespace added between each character in maths mode

   • $p.f.$ this is the default
   • $\mathit{p.f.}$ this is with \mathit

4. \mathtt for register variables, eg $\mathtt{ADC0Value}$

5. Uses \cos and \sin commands to property typeset sinusoidal functions

   • $sin(1000\pi f)$ before
   • $\sin(1000\pi f)$ after

6. Properly typesets quantities and units

   • $0.5A$ before
   • $0.5\hspace{3mu} \text{A}$ after

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Why Should This Be Merged?

I believe these changes make it much easier to visually discriminate between the different mathematical content of the lecture slides by properly typesetting variables and text annotations.

How Has This Been Tested?

cs209.pdf
cs209.zip

I have tested this with a $\LaTeX$ document as above, with the source in the following format:

% original KaTeX source
original KaTeX converted to LaTeX
new LaTeX

% original KaTeX source
original KaTeX converted to LaTeX
new LaTeX

...

A staging environment is live at https://jamesnzl.github.io/uoa-ece209.github.io where all changes can be previewed.

I have also tried to respect line-width with inline equations and line-height with block equations to avoid slide overflows, and have fully tested this in the staging environment.

[JamesNZL]

Deployed a GitHub Pages staging environment on my fork, changes can be previewed at https://jamesnzl.github.io/uoa-ece209.github.io.

[JamesNZL]

Ready to be reviewed and merged!

[JamesNZL]

✨

[JamesNZL]

Warning
This may cause merge conflicts with #4.

To resolve this conflict, accept the changes from this branch and manually apply the typo fix in #4 by changing choosen -> chosen.