Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.soft-sys.math.mathematica > #2073

Re: Adding computed values to a Contourplot function

Show all headers | View raw

sigismond kmiecik wrote:

> Hello to everybody
>
> How can I modify the code below (after Epilog) in order to add after 
> "b^2-4ac=" its computed value and have everyhing framed?
>
>
> a=0.5;b=1;c=6;d=2;e=3;f=-30;
> ContourPlot[{a x^2  +b x*y + c  y^2  + d x  + e y - 30 == 0 }, {x, -12, 
> 10}, {y, -8, 8
> }, ContourStyle-> {Red, Thick}, Axes -> True, AxesLabel-> {x,y} ,
> Frame-> False,ImageSize-> {550,400}, Epilog->{Text[Style["b^2 - 
> 4ac=",FontSize-> 20],{5,5}]}]
>
>
> I haven't found in the Mathematica 8 Documentation center a similar example.
>
> Thanks
>
> Sigismond Kmiecik
>

You can use Inset and Row like this:

a = 0.5; b = 1; c = 6; d = 2; e = 3; f = -30;
ContourPlot[{a x^2 + b x*y + c y^2 + d x + e y - 30 == 0}, {x, -12, 
  10}, {y, -8, 8}, ContourStyle -> {Red, Thick}, Axes -> True, 
 AxesLabel -> {x, y}, Frame -> False, ImageSize -> {550, 400}, 
 Epilog -> Inset[
     Style[Row[{HoldForm[b^2-4 a c]," = ",b^2-4 a c}],Large],
  {5, 5}]]
-- 
_________________________________________________________________
Peter Breitfeld, Bad Saulgau, Germany -- http://www.pBreitfeld.de

Back to comp.soft-sys.math.mathematica | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Adding computed values to a Contourplot function sigismond kmiecik <sigismond.kmiecik@wanadoo.fr> - 2011-05-03 09:43 +0000
  Re: Adding computed values to a Contourplot function Peter Breitfeld <phbrf@t-online.de> - 2011-05-03 12:23 +0000
  Re: Adding computed values to a Contourplot function Dan <dflatin@rcn.com> - 2011-05-04 10:35 +0000
  Re: Adding computed values to a Contourplot function Helen Read <readhpr@gmail.com> - 2011-05-04 10:31 +0000

csiph-web