This is LuaTeX, Version beta-0.80.0 (MiKTeX 2.9 64-bit) (rev 5238)  (format=lualatex 2015.11.9)  9 NOV 2015 16:18
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! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.14800 ...\c_e_fp          { 2.718 2818 2845 9045 }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.14800 ...\c_e_fp          { 2.718 2818 2845 9045 }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! LuaTeX error [\directlua]:1: invalid escape sequence near '\s'.
\__str_if_eq_x:nn ...}","\__str_escape_x:n {#2}")}

l.14800 ...\c_e_fp          { 2.718 2818 2845 9045 }

The lua interpreter ran into a problem, so the
remainder of this lua chunk will be ignored.

! Missing number, treated as zero.
<to be read again>
=
l.14800 ...\c_e_fp          { 2.718 2818 2845 9045 }

A number should have been here; I inserted `0'.
(If you can't figure out why I needed to see a number,
look up `weird error' in the index to The TeXbook.)

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.14801 \fp_const:Nn \c_one_fp        { 1 }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.14801 \fp_const:Nn \c_one_fp        { 1 }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! LuaTeX error [\directlua]:1: invalid escape sequence near '\s'.
\__str_if_eq_x:nn ...}","\__str_escape_x:n {#2}")}

l.14801 \fp_const:Nn \c_one_fp        { 1 }

The lua interpreter ran into a problem, so the
remainder of this lua chunk will be ignored.

! Missing number, treated as zero.
<to be read again>
=
l.14801 \fp_const:Nn \c_one_fp        { 1 }

A number should have been here; I inserted `0'.
(If you can't figure out why I needed to see a number,
look up `weird error' in the index to The TeXbook.)

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.14802 ...\c_pi_fp         { 3.141 5926 5358 9793 }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.14802 ...\c_pi_fp         { 3.141 5926 5358 9793 }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! LuaTeX error [\directlua]:1: invalid escape sequence near '\s'.
\__str_if_eq_x:nn ...}","\__str_escape_x:n {#2}")}

l.14802 ...\c_pi_fp         { 3.141 5926 5358 9793 }

The lua interpreter ran into a problem, so the
remainder of this lua chunk will be ignored.

! Missing number, treated as zero.
<to be read again>
=
l.14802 ...\c_pi_fp         { 3.141 5926 5358 9793 }

A number should have been here; I inserted `0'.
(If you can't figure out why I needed to see a number,
look up `weird error' in the index to The TeXbook.)

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.14803 ...one_degree_fp { 0.0 1745 3292 5199 4330 }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.14803 ...one_degree_fp { 0.0 1745 3292 5199 4330 }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! LuaTeX error [\directlua]:1: invalid escape sequence near '\s'.
\__str_if_eq_x:nn ...}","\__str_escape_x:n {#2}")}

l.14803 ...one_degree_fp { 0.0 1745 3292 5199 4330 }

The lua interpreter ran into a problem, so the
remainder of this lua chunk will be ignored.

! Missing number, treated as zero.
<to be read again>
=
l.14803 ...one_degree_fp { 0.0 1745 3292 5199 4330 }

A number should have been here; I inserted `0'.
(If you can't figure out why I needed to see a number,
look up `weird error' in the index to The TeXbook.)

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! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17564     { \i }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17564     { \i }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! LuaTeX error [\directlua]:1: invalid escape sequence near '\i'.
\__str_if_eq_x:nn ...}","\__str_escape_x:n {#2}")}

l.17564     { \i }

The lua interpreter ran into a problem, so the
remainder of this lua chunk will be ignored.

! Missing number, treated as zero.
<to be read again>
=
l.17564     { \i }

A number should have been here; I inserted `0'.
(If you can't figure out why I needed to see a number,
look up `weird error' in the index to The TeXbook.)

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17600     { \q_recursion_tail }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17600     { \q_recursion_tail }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! LuaTeX error [\directlua]:1: invalid escape sequence near '\q'.
\__str_if_eq_x:nn ...}","\__str_escape_x:n {#2}")}

l.17600     { \q_recursion_tail }

The lua interpreter ran into a problem, so the
remainder of this lua chunk will be ignored.

! Missing number, treated as zero.
<to be read again>
=
l.17600     { \q_recursion_tail }

A number should have been here; I inserted `0'.
(If you can't figure out why I needed to see a number,
look up `weird error' in the index to The TeXbook.)

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17637     { \q_recursion_tail }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17637     { \q_recursion_tail }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! LuaTeX error [\directlua]:1: invalid escape sequence near '\q'.
\__str_if_eq_x:nn ...}","\__str_escape_x:n {#2}")}

l.17637     { \q_recursion_tail }

The lua interpreter ran into a problem, so the
remainder of this lua chunk will be ignored.

! Missing number, treated as zero.
<to be read again>
=
l.17637     { \q_recursion_tail }

A number should have been here; I inserted `0'.
(If you can't figure out why I needed to see a number,
look up `weird error' in the index to The TeXbook.)

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17667     { \q_recursion_tail }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17667     { \q_recursion_tail }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! LuaTeX error [\directlua]:1: invalid escape sequence near '\q'.
\__str_if_eq_x:nn ...}","\__str_escape_x:n {#2}")}

l.17667     { \q_recursion_tail }

The lua interpreter ran into a problem, so the
remainder of this lua chunk will be ignored.

! Missing number, treated as zero.
<to be read again>
=
l.17667     { \q_recursion_tail }

A number should have been here; I inserted `0'.
(If you can't figure out why I needed to see a number,
look up `weird error' in the index to The TeXbook.)

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17686     { \q_recursion_tail }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17686     { \q_recursion_tail }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! LuaTeX error [\directlua]:1: invalid escape sequence near '\q'.
\__str_if_eq_x:nn ...}","\__str_escape_x:n {#2}")}

l.17686     { \q_recursion_tail }

The lua interpreter ran into a problem, so the
remainder of this lua chunk will be ignored.

! Missing number, treated as zero.
<to be read again>
=
l.17686     { \q_recursion_tail }

A number should have been here; I inserted `0'.
(If you can't figure out why I needed to see a number,
look up `weird error' in the index to The TeXbook.)

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.17723     { \textsigma }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

)
! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.221   }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.221   }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.221   }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.221   }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.221   }

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
\__str_escape_x:n #1->\luatex_luaescapestring:D
                                                {\etex_detokenize:D \exp_aft...
l.221   }

(That makes 100 errors; please try again.)

Here is how much of LuaTeX's memory you used:
 5606 strings out of 494933
 100000,154059 words of node,token memory allocated
 256 words of node memory still in use:
    nodes
   avail lists: 2:10,3:1,6:2,9:2
 9328 multiletter control sequences out of 65536+200000
 15 fonts using 601983 bytes
 33i,0n,38p,195b,85s stack positions out of 5000i,500n,10000p,200000b,50000s
!  ==> Fatal error occurred, no output PDF file produced!