This is pdfTeX, Version 3.1415926-2.4-1.40.13 (TeX Live 2012/Debian) (format=latex 2013.5.15) 4 NOV 2013 11:54 entering extended mode restricted \write18 enabled. %&-line parsing enabled. **cosh2 ! Emergency stop. <*> cosh2 End of file on the terminal! Here is how much of TeX's memory you used: 3 strings out of 495060 106 string characters out of 3182053 45057 words of memory out of 3000000 3288 multiletter control sequences out of 15000+200000 3640 words of font info for 14 fonts, out of 3000000 for 9000 14 hyphenation exceptions out of 8191 0i,0n,0p,1b,6s stack positions out of 5000i,500n,10000p,200000b,50000s No pages of output.