Re: tooltip - evaluate function at point

*To*: mathgroup at smc.vnet.net*Subject*: [mg98734] Re: tooltip - evaluate function at point*From*: dbreiss at gmail.com*Date*: Fri, 17 Apr 2009 04:28:42 -0400 (EDT)*References*: <gs6pjo$h7i$1@smc.vnet.net>

Here is the start of one sort of approach. It seems ot have some bugginess though. But perhaps this will get you going: With[{plot = ContourPlot[Arg[Gamma[x + I*y]] == 0, {x, -10, 10}, {y, -10, 10}, PlotPoints -> 20]}, Dynamic@Tooltip[ plot, (With[{z = Complex @@ MousePosition["Graphics"]}, {z, Gamma[z]}]) ] ] I suspect that someone else will give you a more stable approach.... --David On Apr 16, 4:18 am, "Cristina Ballantine" <cball... at holycross.edu> wrote: > I would like to plot the solutions to an equation using ContourPlot and > add a tooltip that evaluates a different function at the points on the > solution. In particular, for the plot > > ContourPlot[Arg[Gamma[x + I*y]] == 0, {x, -10, 10}, {y, -10, 10}, Plo= tPoints -> 20] > > when the cursor is over a solution point I would like the ToolTip to > display the value of Gamma at that point. Is this possible? If so, any > suggestion is greatly appreciated. > > Cristina