# No multilingual support cannot enable multilingual quotes on input line? [duplicate]

i get an error in , i write long equation and split it using \\. it shows an error

 Package pgfplots Warning: running in backwards compatibility mode (unsuitable
tick labels; missing features). Consider writing \pgfplotsset{compat=1.7} into

• This is a warning. Not an error. Just write \pgfplotsset{compat=1.7} after the loading of pgfplots in your preamble. You should consider updating your system as the current version is 1.12 I believe. Anyway, this has nothing to do with your equation. Note that you can not just split an equation by \\. You have to use a split or align or similar environment. – LaRiFaRi Dec 23 '15 at 7:43
• Consider using \multline (en.wikibooks.org/wiki/LaTeX/…) – Karlo Dec 23 '15 at 8:04