Tutorial PDF build failing in PDB section

[peterjc]

Looks to be a failure from 214c4f6 on #3898, not noticed at the time since LaTeX takes too long for use on CI:

$ cd Docs/
$ make
...
! LaTeX Error: Bad math environment delimiter.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.1136 ...'1A8O', 0, 'A', \(' ', 153, ' '\)\) ILE}
                                                  ) are optional, and will be
? 
! Double superscript.
<recently read> ^
                 
l.1136 ...'1A8O', 0, 'A', \(' ', 153, ' '\)\) ILE}
                                                  ) are optional, and will be
? 
! Double superscript.
<recently read> ^
                 
l.1136 ...'1A8O', 0, 'A', \(' ', 153, ' '\)\) ILE}
                                                  ) are optional, and will be
? 

! LaTeX Error: Bad math environment delimiter.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.1136 ...'1A8O', 0, 'A', \(' ', 153, ' '\)\) ILE}
                                                  ) are optional, and will be
? 
...

From here in Doc/Tutorial/chapter_pdb.tex:

\subsubsection{Protein Internal Coordinate (.pic) files and default values}

A file format is defined in the \texttt{PICIO} module to describe protein chains as hedra and
dihedra relative to initial coordinates.  All parts of the file other than the residue sequence
information (e.g. \texttt{\('1A8O', 0, 'A', \(' ', 153, ' '\)\) ILE}) are optional, and will be
filled in with default values if not specified and \texttt{read\_PIC\(\)} is called with the
\texttt{defaults=True} option.  Default values are calculated from Sep 2019 Dunbrack
cullpdb\_pc20\_res2.2\_R1.0.

It is not immediately obvious what it wrong (all to common with LaTeX), but probably verbatim would be better than \texttt{...} here?

[peterjc]

@rob-miller does this display as you'd like it?

A file format is defined in the \texttt{PICIO} module to describe protein chains as hedra and
dihedra relative to initial coordinates.  All parts of the file other than the residue sequence
information (e.g. \verb|('1A8O', 0, 'A', (' ', 153, ' ')) ILE|) are optional, and will be
filled in with default values if not specified and \verb|read_PIC()| is called with the
\texttt{defaults=True} option.  Default values are calculated from Sep 2019 Dunbrack
cullpdb\_pc20\_res2.2\_R1.0.

Our existing verbatim usage is split between \verb|...| and \verb+...+, either delimiter seems fine here.

[JoaoRodrigues]

Linking to #4227

[rob-miller]

In case you don't want to use the PR it is just removing the \'s escaping the parens - sorry I missed this.

information (e.g. \texttt{('1A8O', 0, 'A', (' ', 153, ' ')) ILE}) are optional

[peterjc]

Thank you 👍