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49 lines
1.5 KiB
TeX
49 lines
1.5 KiB
TeX
\documentclass{article}
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\usepackage[pdftex,active,tightpage]{preview}
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\setlength\PreviewBorder{2mm}
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\usepackage{pgfplots}
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\usepackage{units}
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\pgfplotsset{compat=1.3}% <-- moves axis labels near ticklabels
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% (respects tick label widths)
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\usepackage{tikz}
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\usetikzlibrary{arrows, positioning, calc, intersections, decorations.markings}
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\usepackage{xcolor}
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\definecolor{horizontalLineColor}{HTML}{008000}
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\definecolor{verticalLineColor}{HTML}{FF0000}
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\begin{document}
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% Define this as a command to ensure that it is same in both cases
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\newcommand*{\ShowIntersection}[2]{
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\fill
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[name intersections={of=#1 and #2, name=i, total=\t}]
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[red, opacity=1, every node/.style={above left, black, opacity=1}]
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\foreach \s in {1,...,\t}{(i-\s) circle (2pt)
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node [above left] {\s}};
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}
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\begin{preview}
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\begin{tikzpicture}
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\begin{axis}[
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grid=both,
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minor tick num=1,
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xlabel=$x$,
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ylabel=$y$,
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zlabel=$z$,
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%label distance=0mm,
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%width=8cm, height=7cm, % size of the image
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xmin=-5, % start the diagram at this x-coordinate
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xmax= 5, % end the diagram at this x-coordinate
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ymin=-5, % start the diagram at this y-coordinate
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ymax= 5, % end the diagram at this y-coordinate
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axis lines=left,
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%tick style={draw=none},
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%xticklabels={,,},
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%yticklabels={,,}
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]
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\addplot3[surf, colormap name=viridis] {3*x*x-y*y-9*x+1};
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\end{axis}
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\end{tikzpicture}
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\end{preview}
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\end{document}
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