Re: How to get Tooltip value

*To*: mathgroup at smc.vnet.net*Subject*: [mg112893] Re: How to get Tooltip value*From*: Albert Retey <awnl at gmx-topmail.de>*Date*: Tue, 5 Oct 2010 05:33:47 -0400 (EDT)*References*: <i8c8rl$g73$1@smc.vnet.net>

Am 04.10.2010 12:04, schrieb James Brown: > Is there a way to extract the value of a variable and display it with > Tooltip? > Example: > f[x_] := 1/x^2 > Plot[Tooltip[f[x],"Value of x is:" "(wish I knew)"],{x,0,100}] > I think this should get you going: Dynamic[CurrentValue[{"MousePosition", "Graphics"}]] I found it works better to only extract the first value and calculate the function value with that, otherwise the difference can become irritating: Plot[Tooltip[f[x], Dynamic[{#, f[#]} &@CurrentValue[{"MousePosition", "Graphics"}][[1]] ]], {x, 0, 100}] hth, albert