Questions relating to the dynamic family of functions in Mathematica, such as Dynamic, DynamicModule and Manipulate.

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3
votes
1answer
206 views

Avoid crash in recursive Dynamic

With the following Dynamic cell, I can reproducibly crash Mathematica, so do not try this unless you have saved all your work! ...
17
votes
1answer
634 views

Module vs DynamicModule for a dynamic variables in a grid. || Spelling Bee

When my daughter asked me help with her spelling homework, for me the obvious thing to do was to write a Mathematica program for it. The words: ...
10
votes
3answers
482 views

How to anchor a Pane's scroll position to the bottom?

Suppose I have a Pane containing some dynamic text, for example that is being updated by a logging function. ...
8
votes
1answer
294 views

I want to update a financial chart when I select a new stock from a popup menu

I have the following code: Read all the DOW jones financial instruments instruments = FinancialData["^DJI", "Members"] Then I create a dynamic variable called ...
8
votes
2answers
186 views

Checking from a preemptive evaluation whether a main evaluation is ongoing

How can I programmatically check from a preemptive evaluation whether a main evaluation is currently ongoing? I need a function mainEvaluationOngoingQ[] so that ...
12
votes
1answer
352 views

How to create interrelated sliders?

Say I want a slider that controls the value of $x$ and another slider that controls the value of $2x$, how would I go about it?
15
votes
2answers
661 views

How can I set the speed of manipulate play button?

Can you set the speed at which a Manipulate plays when the play button is clicked?
13
votes
5answers
776 views

Using DynamicModule variables outside the DynamicModule

Take the following example for hiding/showing a notebook through a Checkbox: ...
15
votes
3answers
363 views

Practical uses of DynamicWrapper

I am looking for practical uses of the function DynamicWrapper . I read documentation and know whatever it says. I would appreciate a clear example of a useful ...
13
votes
1answer
362 views

Is it possible to use Begin and End inside a Manipulate?

May be someone can explain why I can't use Begin["context`"] and End[] inside a Manipulate ...
16
votes
1answer
626 views

How can I share objects with dynamic content with non-Mathematica users?

Often when I construct some cool Manipulate[] function, I would like to share it with others—non-Mathematica users. Some software, notably Cinderella, ...
8
votes
1answer
168 views

Using GraphHighlight interactively

I want to build a small GUI, where the user can select either a single edge or a single node of a graph. I got to this point: ...
7
votes
1answer
232 views

Why is the Locator snapping back to the original coordinates? How can I prevent this?

Take the following code: p = {3, 3}; Graphics[Circle[{5, 5}, 5], Epilog -> Dynamic@Locator[Dynamic[p]], Axes -> True, GridLines -> {{3}, {3}}] ...
22
votes
2answers
728 views

What are the most common (usual) ways to make palettes with non-trivial functionality?

What are the best (most robust and most convenient) ways to create palettes that can be installed permanently (using Palettes -> Install Palette...) and are safe ...
8
votes
2answers
570 views

What causes Manipulate to stop evaluating expressions?

I'm working on a N-body simulation within Mathematica, and currently I have something along these lines: ...
11
votes
3answers
365 views

Why do buttons with ChoiceDialog freeze the front end?

Pressing the button below will freeze my front end. An unpainted white dialog box comes up, then it completely freezes, and I need to forcibly kill the front end. CPU usage stays at zero during ...