@@ -60,6 +60,15 @@ It must be included as follows:
- All symbols that appear in equations (or elsewhere) must be properly explained.
- Symbol usage must be consistent throughout your writeup, e.g. don't use `x(t)` to refer to the baseband and the passband signal.
#### Text Within Math Mode
Note: Fonts and text rendering with or without LaTeX is seemingly pretty complicated, so some terms might not be 100% correct. The main goal of this section is however to avoid writing text in math mode, and I think for that it's sufficient ;) It applies as written when using the default font setup (serif / roman fonts)
- Sub- and superscripts that are not variables, i.e. are not stand-ins for numbers/expressions, shall be set upright in the math font family, e.g. `\mathrm{word}`. Examples:
- if you have the radius of the Earth as `R_E`, the `E` shall not be cursive, because it does not replace something else (it's a name), so write `R_\mathrm{E}`
- set the summation index cursive (that is, without any special markup): `\sum_{i=1}^{N} x_i` (the `_i` shall be replaced by 1, 2, ..., N and is therefore a variable that is set cursive)
- Words or abbreviations in equations that still act as symbols are set upright in the math font family, e.g. `\mathrm{velocity} = \frac{\mathrm{distance}}{\mathrm{time}}`. This also applies to subscripts, etc. Please note that `\mathrm` is very limited and does e.g. not support (i.e. eat) spaces.
-`\text{your text here}` is used when actual text is needed in math mode, e.g. in a `cases` environment with `\text{if\ } x >0` or `\text{otherwise}`
### Units and Quantities
- When writing quantities, use a package like `siunitx` (if possible) - then you don't have to deal with the typography yourself.
- Prefer quantity equations (equations that remain valid independent of the units, e.g. `\lambda = c / f`) and make sure the units work out. Avoid numerical-value equations (equations that depend on the quantities being expressed in specific units, e.g. `\lambda in m = 300 / f in MHz`). If numerical-value equations are required or very common, give the quantity equation beforehand.
