| Hard Nuts |    60 |
$$\vbox{...}$$ | math? center? |
$R=\{x|x$ is real $\}$ | broken math |
\begin{array}...(... & ...)...\end{array} | (...</mtd> <mtd>...) |
{}^{...} | empty base |
- Fixes (typically) are:
- Easy, for code in the preamble and style files
- Painful, for explicit code within the body
- Clean LaTeX code very rarely needs to be fixed