This is pdfTeX, Version 3.14159265-2.6-1.40.15 (TeX Live 2015/dev/Debian) (preloaded format=latex 2015.6.22)  29 NOV 2016 12:23
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**equations.tex

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<*> equations.tex
                 
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Here is how much of TeX's memory you used:
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 118 string characters out of 6181350
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 3320 multiletter control sequences out of 15000+600000
 3640 words of font info for 14 fonts, out of 8000000 for 9000
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