# Tagged Questions

Questions on the Manipulate function of Mathematica, a function that allows the interactive manipulation of certain parameters in a Mathematica expression.

5answers
1k views

### How are parameters evaluated for a Plot in Manipulate

I am trying to get my head around how Manipulate evaluates functions in a Plot. I have read the introduction to Manipulate, and introduction to Dynamic, but I still ...
3answers
1k views

### PolarPlot render oddities

I apologize if this is a obvious question and answer, I don't often use Mathematica to display plots or graphics in general to be honest. So, I was tutoring my cousin yesterday in relation to Polar ...
3answers
470 views

### What does None mean in a control specification for Manipulate?

I am now struggling to understand code that contains the following (simplified) Manipulate structure. ...
3answers
2k views

### RevolutionPlot3D: but NOT revolving about the z axis

I want to demonstrate generating a solid of revolution by revolving a planar region about, say, a horizontal axis. However, RevolutionPlot3D doesn't seem to have an ...
3answers
2k views

### Manipulate with a variable number of sliders

I have a function that operates on a list of parameters of variable-length $n$. I would like to create a Manipulate[] that has $n$ sliders, one for each list ...
1answer
457 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 ...
2answers
1k views

### Simple problem with Manipulate and Plot

Would anyone have an idea why the following doesn't work: rule = {z -> x^2 + 2 x + y}; Manipulate[ Plot[z /. rule, {x, 0, 10}], {{y, 2, "y"}, 1, 5} ] But ...
3answers
2k views

### Manipulate using a variable defined outside of the manipulate function [duplicate]

I want to do something like this: expr := x^e; Manipulate[Plot[expr, {x, 0, 4}], {e, 1, 3}] But the plot shows up empty. Yes, it works if I do: ...
1answer
861 views

### What is the proper method to load a Mathematica package inside a DynamicModule

I have a DynamicModule that requires loading of Mathematica packages. The usual methods do not seem to apply (...
2answers
425 views

### How to dynamically update Locator[] constraints?

I need to visualize Menelaus' theorem for a triangle with moving locators for each of six points. So the vertexes of the triangle can move in any possible way, and the three points on the sides of the ...
4answers
272 views

### Resizing or moving Notebook window causes Manipulate to update its argument

Bug introduced in 10.0 and fixed in 10.3.0 Check this example: Manipulate[Grid[{{RandomReal[10]}, {Plot[Sin[x], {x, 0, 2 Pi}]}}], {a, 1, 3}] As you can see, ...
3answers
462 views

### Using function with multiple definitions in Manipulate

I'm trying to use Manipulate to visually try out different values of lambda in a Box-Cox transformation. I've created a boxcox ...
4answers
1k views

### In a CDF can I suppress or avoid “This file contains potentially unsafe dynamic content…”

I created a CDF to distribute to a single trusted user who both knows and trusts me and everything I make for them. I downloaded the CDF player and the CDF to one of their computers. The CDF works ...
3answers
935 views

### How to modularize custom controls for Manipulate?

Background: My Manipulate programs are becoming (too) long. I want to split them up in to independent modules, if at all possible. Take this program as a prototype: ...
1answer
474 views

### Manipulate evaluation sequence

Manipulate doesn't always evaluate in the order I expect it to. What is the evaluation sequence for Manipulate and other ...
2answers
953 views

### How To interactively create a Polygon in a Graphic?

Background: suppose I start with the following (working) snippet. Manipulate[Graphics[Line[{{0, 0}, p}], PlotRange -> 2], {{p, {1, 1}}, Locator}] Ideally, I ...
2answers
905 views

### Moving From Dynamic Module to Manipulate

In trying to implement Vitaly's suggestion about how to take control of Locator events, I have been able to make headway using ...
3answers
1k views

### Logarithmic slider

Is it possible to create a logarithmic slider similar to this one that responds to a change of the variable value? That is, when the slider is moved, the variable value should update. When the ...
1answer
544 views

### Why does Manipulate execute the expression twice?

When I execute Foobar[] in the code below and move a slider, the variable grad is printed twice. Why is this? How can I make the ...
5answers
544 views

### Manipulate Exp[I θ]+b Exp[-I θ]

I've uploaded an image showing a demonstration I'd like to create, but I definitely need help. There is a lot of talent on this list, so maybe someone can help me get started learning how to add ...
2answers
246 views

### Problems with Manipulate (indicated by blinking output cell)

The following code produces the error message when exported to CDF in the title of this question. Although I have seen similar issues on SE, the problem is manifest by the "blinking" of the plot ...
1answer
624 views

### Enabled option for slider in Manipulate not updating dynamically

In a Manipulate expression I have a slider control which has the Enabled option ...
1answer
90 views

### Continuation of a Problem with Manipulate

For the beginning of this discussion, see: A problem with Manipulate. Now, the final use of the Initialization command doesn't protect the Global workspace. What I am discussing is not a single ...
2answers
475 views

### The dangers of SaveDefinitions — should this really happen?

I have been bitten hard by SaveDefinitions -> True. I'll describe in detail what happened below. My questions are: Is this a bug? What is the most convenient ...
2answers
323 views

### How to avoid an expensive subset of a Manipulate computation when dependent variables have not changed?

I have a Manipulate where a portion of the calculation that ends up displayed is dependent on a subset of the Manipulate control ...
3answers
320 views

### Manipulate changing controls

Is it possible to use Manipulate and Switch to change the Manipulate controls? ...
2answers
536 views

### How can I get Manipulator control elements to appear on one line?

By default Manipulator produced by Manipulate with Appearance -> "Open" option have two ...
2answers
3k views

### Export animation of a Manipulate autorun sequence?

I've got a Manipulate that does a vector field plot. Basically a function that returns a list of Graphics objects and a couple of sliders: ...
3answers
698 views

### Constrain movement of a locator inside Manipulate

Once again a big thank you for the great help in my earlier post: Plotting function with Dynamic parameter. It totally worked out. I now have a new coding problem ...
1answer
531 views

### “Show” with Manipulate runs fine normally, but gives errors as a CDF

I've simplified my code to what can reproduce my error. Basically, I have two lines: ...
2answers
567 views

### How to make slider in/visible in Manipulate?

I need your help with making a slider invisible and visible in a Manipulate. Here is my code: ...
4answers
608 views

### How to select interactively datasets to plot with Manipulate

I'm using Manipulate to visualize three datasets: Manipulate[ListPlot[WHAT -> what], {what, {dataset1, dataset2, dataset3}}] Now with this solution I can only ...
6answers
4k views

### Using ListPointPlot3D to simulate 2D plots moving in time

I wrote a 1D solver for the heat equation $u_t=u_{xx}$, and I can animate the solution using normal ListPlot command, where the x-axis is the rod length, and the y-...
2answers
1k 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?
2answers
441 views

### Dependent Manipulate sliders

I would like to use dependent sliders in Manipulate. First slider K0 should be independent and varied from ...
1answer
406 views

### Full documentation for AppearanceElements

As explained in this solution, ListAnimate[Table[Plot[Sin[n x], {x, 0, 2}], {n, 3}]]//InputForm will allow me to view the types of appearance element for the <...
4answers
429 views

### Manipulate flickering and consuming lots of CPU

I am new to Mathematica and was experimenting with a simply problem of plotting a tangent to a curve and being able to move the point at which the tangent is drawn using ...
2answers
393 views

### saving Manipulate data inside a notebook

I want to send a few Manipulate Plots and regular plots to my advisor in a notebook. I ...
2answers
138 views

### Showing “updating…” message while Manipulate is re-evaluating

Is it possible to show a fixed text such as "updating..." instead of the last result shown, when Manipulate is re-evaluating an expression (in a slow evaluation ...
3answers
542 views

### Unexpected Setter Bar Behavior when Manipulate Nested in Dynamic Module

Consider this code: DynamicModule[{x, y}, x[t_] := t^2 + 5; y[t_] := t^3 + 5; Manipulate[Plot[fcn[t], {t, -5, 5}], {fcn, {x -> "Square", y -> "Cubic"}}]] ...
1answer
125 views

### What are Epilog x-Axis Positions In BoxWhiskerChart (with BarSpacing option)?

I have a dataset that has a number of groups with overlapping sets. There is a point in the group within the intersection of the sets that I want to highlight by placing a marker of that point between ...
2answers
2k views

### Combining manipulated plots

Let's say I have two manipulated plots: Manipulate[Plot[Sin[a x], {x, 0, Pi}], {a, 0, 10}] Manipulate[Plot[Cos[b x], {x, 0, Pi}], {b, 0, 10}] How can I create a ...
3answers
247 views

### Is there something wrong with this piece of code involving Manipulate?

I am playing around with the Manipulate sentence. I think the following code is right, and actually Mathematica 9.0 doesn't return any error message, but I am ...
4answers
346 views

### Change all Options of Plot Dynamically

I am trying to make a series of changes in the appearance of the Plot of some function. I am trying to use Manipulate for my experiments. I tried to change the following code ...
2answers
402 views

### Why does the syntax highlighter color a local symbol red inside DynamicModule?

I am adding a Module inside DynamicModule here is an example (thanks to @rm-rf for this simple example) ...
1answer
449 views

### How to apply a free-form input Function using InputField

I am trying to take a free-form input Function to create a list using NestList. ...
1answer
827 views

### Increasing number of decimal places in Manipulate input

I've made a Manipulate app. in Mathematica where I vary the value of a function f(a) by varying the parameter a. However, I seem to only be able to edit my input for a for a value up to 5 decimal ...
2answers
262 views

### Manipulate in Manipulate

Question 63982 (Altering values in Manipulate with dynamically generated controls) got a very interesting answer from @belisarius, in which he used a Manipulate ...
1answer
182 views

### ControlType -> None Vs. Module inside Manipulate (i.e. making everything local)

I'm building a program on another one made available in the Wolfram Demonstration Project. I've noticed that in the original code (working flawlessly) many variables were made local inside the ...
1answer
247 views

### Manipulate not showing anything

This works: Manipulate[Plot[2*x + 3*y, {x, 3, 4}], {y, 3, 4}] But this doesn't ...