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How can I label the coordinates of the plotted graph? I want to label the coordinate of $(-1,-1)$.

Plot[2 Sin[x], {x, -2 Pi, Pi}, 
 PlotStyle -> {Dashing[0.0155], Thickness[0.006]}, 
 Ticks -> {{-2 Pi, -Pi, 0, Pi}, {1, 2}}, Filling -> Axis, 
 Epilog -> {PointSize[0.017], Point[{-1, -1.68}]}, 
 FillingStyle -> Yellow, Background -> LightGray]
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  • $\begingroup$ Read the documentation for Plot. $\endgroup$
    – ciao
    Mar 15, 2014 at 7:01
  • $\begingroup$ I tried it and i got stucked.. I tried displayform but it brought me nowhere :( help me please $\endgroup$
    – wayne
    Mar 15, 2014 at 7:04
  • 1
    $\begingroup$ Please do not use the graphs-and-networks tag for plotting questions. That tag is for networks, as made clear by its name. $\endgroup$
    – Szabolcs
    Mar 15, 2014 at 15:13
  • $\begingroup$ Ok noted. im sorry. i just joined this awesome page :) $\endgroup$
    – wayne
    Mar 15, 2014 at 16:53
  • $\begingroup$ If your plot is not for a static use, e.g., in a print publication, then would it be sufficient to use a tooltip? Thus (with stripped down code for simplicity):Plot[Tooltip[{2 Sin[x], 2 Cos[x]}], {x, -2 Pi, Pi}] $\endgroup$
    – murray
    Mar 15, 2014 at 20:55

1 Answer 1

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You were almost there.

 Plot[2 Sin[x], {x, -2 Pi, Pi}, PlotStyle -> {Dashing[0.0155], Thickness[0.006]}, 
  Ticks -> {{-2 Pi, -Pi, 0, Pi}, {1, 2}}, Filling -> Axis, 
  Epilog -> {Text[Style["label", Red, 14], {-1, -1}, {-1, 0}], PointSize[0.017], 
  Point[{-1, -1.68}]}, FillingStyle -> Yellow, Background -> LightGray]

Mathematica graphics

To label more points (you can change to make your own labels as needed)

pts = {{-1, -1}, {-2, -1.5}};
Plot[2 Sin[x], {x, -2 Pi, Pi}, PlotStyle -> {Dashing[0.0155], 
   Thickness[0.006]}, Ticks -> {{-2 Pi, -Pi, 0, Pi}, {1, 2}}, 
   Filling -> Axis, Epilog -> {Text[Style[ToString[#], Red, 14], #, {-1, 0}] & /@ pts,
   PointSize[0.017], Point[{-1, -1.68}]},FillingStyle -> Yellow, 
   Background -> LightGray]

Mathematica graphics

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  • $\begingroup$ Thank you so much. what should i do if i want to label two points? $\endgroup$
    – wayne
    Mar 15, 2014 at 7:19

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