Questions on undocumented functionality of Mathematica. Note that such functions might be subject to change without notice in future versions.
46
votes
5answers
1k views
What are some useful, undocumented Mathematica functions?
There have already been some questions about some undocumented functionality in Mathematica. Such as (please add to these lists!)
How can one find undocumented options or option values in ...
32
votes
2answers
982 views
Internal`Bag inside Compile
Since Internal`Bag, Internal`StuffBag and Internal`BagPart can be compiled down, it is a ...
61
votes
4answers
1k views
How can one find undocumented options or option values in Mathematica?
Mathematica has a lot of undocumented or poorly documented options.
How does one go about working out if there is an undocumented option that might solve a particular problem?
How does one work out ...
20
votes
1answer
690 views
Does Mathematica support variable frame rate for any video format, in analogue of GIF-style “DisplayDurations”?
The good old GIF animation format allows us to set the duration of each individual frame in the animation separately. This is especially useful if some frames in ...
30
votes
5answers
566 views
Items known by CurrentValue
CurrentValue can be used to poll the state of numerous system values such as the mouse position. Its help page doesn't list all possible items, though. An item like ...
19
votes
2answers
303 views
Undocumented form for FilledCurve[]
New in Mathematica 8 is FilledCurve (and its cousin JoinedCurve). The docs state that this function can take a list of segments ...
17
votes
1answer
283 views
How do I find all the possible events that work with EventHandler?
The EventHandler documentation, More Information section, lists 5 mouse events:
...
11
votes
3answers
283 views
Undocumented syntax of FilledCurve [duplicate]
Possible Duplicate:
Undocumented form for FilledCurve[]
A nice trick to get the outline paths of letters is to use the PDF exporter/importer
...
12
votes
2answers
284 views
Internal “Periodical” functions in version 7
In version 7 there exist these Internal` context functions:
?Internal`*Periodical*
...
22
votes
4answers
601 views
Question about collections of custom GUI controls for Mathematica
Background: I have only recently begun programming GUIs in Mathematica, so I have a continuous need for custom controls. I needed a scrollable list control and with the help of Google I found a ...
18
votes
1answer
267 views
What does “EquationalLogic`FindCounterexample[]” do?
I found the undocumented EquationalLogic`FindCounterexample[] by browsing the lists of available symbols, but I have no clue about its purpose.
The name is ...
17
votes
1answer
101 views
What does Internal`InheritedBlock do?
What does the function Internal`InheritedBlock do? How is it different from the regular Block?
18
votes
3answers
526 views
Is using undocumented functionality a Bad Idea™?
Mathematica has a lot of very useful undocumented features. For example a hash table, a built-in list of compilable functions, additional options to CurrentValue, ...
10
votes
3answers
195 views
In InputField, how to prevent Shift-Return from generating a new cell?
When running the following in a notebook (not a deployed CDF file), it can sometimes be annoying that accidentally pressing Shift-Return breaks out of the user ...
10
votes
1answer
134 views
Is there a way to have a Tooltip for non-editable raster graphics produced by MakeBoxes?
I have a function which produces a large object I would like to hide. Formatting is of course an option but I'm hoping for something a little more meaningful using raster graphics and ...
7
votes
1answer
169 views
What is the complete list of valid FrontEnd Packet types?
In response to my question How can I get the unchanged Box form of an arbitrary expression? John Fultz answered with a method using the hilariously named ...
8
votes
2answers
209 views
Is there a “GrabHand” and “OpenHand” MouseAppearance in Mathematica?
MouseAppearance[Plot[Sin[x], {x, 0, 5}], "LinkHand"]
Unfortunately I cannot get a screen grab to show the link hand but it is a cartoon hand with a finger ...
4
votes
1answer
84 views
What's the simplest way to plot an ErrorListPlot with only y error bars?
Sometimes I get really tired of Preparing data for making an ErrorListPlot using Thread and friends. Is there a simpler way to plot an ErrorListPlot with only y ...
