I found an example of a nice graph in the pgfplots manual, and am trying to graphmy own function with it. However, when I try to graph x^2, I seem to get x^3.



\draw[very thin,color=gray,style=dashed] (-3,-3) grid (3,3);
\draw[->] (-3,0) -- (3,0) node[right] {$x$};
\draw[->] (0,-3) -- (0,3) node[above] {$f(x)$};
\draw[color=blue] plot (\x,{(\x)^2-2(\x)-2}) node[right] {$f(x)$};


Would anyone happen to know why this isn't working properly?

closed as off-topic by Symbol 1, Stefan Pinnow, Maarten Dhondt, Mico, user13907 Oct 29 '16 at 8:37

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  • 2
    You're missing a multiplication sign after the 2:\draw[color=blue] plot (\x,{(\x)^2-2*(\x)-2}) node[right] {$f(x)$}; works fine. – DJP Oct 28 '16 at 20:28
  • 2
    You are not using the commands from pgfplots, but beside this you are missing a multiplication sign: {(\x)^2-2*(\x)-2} – Ulrike Fischer Oct 28 '16 at 20:28
  • @UlrikeFischer thank you! What do you mean I'm not using the commands from pgfplots, though? – Skeleton Bow Oct 28 '16 at 20:43
  • 3
    with pgfplots you should use the axis environment and the \addplot command. Your code doesn't need pgfplots, only tikz. – Ulrike Fischer Oct 28 '16 at 20:45
  • 4
    I'm voting to close this question as off-topic because it was all about a typo and has nothing to do with TeX. – Symbol 1 Oct 29 '16 at 5:20

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