This is pdfTeX, Version 3.1415926-2.5-1.40.14 (TeX Live 2013/Debian) (format=pdflatex 2014.4.17) 29 OCT 2014 22:39 entering extended mode restricted \write18 enabled. %&-line parsing enabled. **T2_G.tex (./T2_G.tex LaTeX2e <2011/06/27> Babel <3.9h> and hyphenation patterns for 78 languages loaded. ! Missing $ inserted. <inserted text> $ l.1 \left (\begin{array}{rrrrrrrrrrrrrr} I've inserted a begin-math/end-math symbol since I think you left one out. Proceed, with fingers crossed. ! LaTeX Error: Missing \begin{document}. See the LaTeX manual or LaTeX Companion for explanation. Type H <return> for immediate help. ... l.1 \left (\begin{array}{rrrrrrrrrrrrrr} You're in trouble here. Try typing <return> to proceed. If that doesn't work, type X <return> to quit. LaTeX Font Info: External font `cmex10' loaded for size (Font) <7> on input line 1. LaTeX Font Info: External font `cmex10' loaded for size (Font) <5> on input line 1. ) ! Emergency stop. <*> T2_G.tex *** (job aborted, no legal \end found) Here is how much of TeX's memory you used: 7 strings out of 493304 149 string characters out of 6139871 60880 words of memory out of 5000000 3566 multiletter control sequences out of 15000+600000 3640 words of font info for 14 fonts, out of 8000000 for 9000 957 hyphenation exceptions out of 8191 18i,8n,12p,67b,86s stack positions out of 5000i,500n,10000p,200000b,80000s ! ==> Fatal error occurred, no output PDF file produced!