# All Questions

294 views

### Vertical (mis-)aligning of plotmarkers and legend text in V10 PlotLegends

Consider this example, taken from the docs and modified for a larger font size using Style (V10.0): ...
334 views

### Interpolation on an unstructured (mostly-structured) grid in 4D+

I frequently need to perform interpolations on an unstructured grid. Mostly, with the purpose of filling grid holes and then later continue with regular grid interpolations. Mathematica V9 and V10 ...
241 views

### How can I disable the “convert to freeform linguistic input” dialog box?

So I'm putting in some function, busy typing away. Then after I've entered some text, I pause for a few seconds. In this time, the notebook pops up the question "Convert to Free-Form Linguistic ...
260 views

### Extract common subexpressions from expressions [duplicate]

I am trying to evaluate multiple independent expressions with common parts. I would like Mathematica to somehow give me this common parts. It's probably not so clear, so let me give you an example. ...
263 views

### A question regarding “DiscretizeGraphics”

I want to find the volume of a torus torus = RevolutionPlot3D[{2 + Cos[t], Sin[t]}, {t, 0, 2 Pi}] ...
108 views

### Incorrect output from InverseFourierTransform

Bug introduced in 8.0.4 or earlier and fixed in 9.0.1 or earlier I am trying to compute the inverse Fourier transform of this expression ...
133 views

### Meaning output ANOVA post hoc tests

I am carrying out an ANOVA in Mma, and I wanted to apply a post-hoc test, but I do not understand the output that is given. It says e.g. Model-> Duncan, {4, 5} ...
740 views

### Is there a better way to “grow” black tulips?

I used the following clumsy way to obtain a bundle of black tulips. Is there a better way to do so? ...
202 views

### Rounding the coeffcients in a polynomial

I have a very large polynomial with Complex Numbers as coefficients. Due to many calculations, there are rounding off errors. I know however by theoretical considerations, that the coefficients are ...
89 views

### StateSpaceRealization “ControllableCompanion” does not generate ControllableCompanion form from DE

Fixed in 10.1 I must be doing something wrong, but do not see it. There is an option in Mathematica control system function StateSpaceModel where one asks it to ...
97 views

### Function returned an unexpected list

I was trying out a question in Wellin's Programming with Mathematica that says the following. Question: Given a set of points in the plane (or 3-space), find the maximum distance between any pair of ...
527 views

### Interpolating an Antiderivative

I'd like to be able to make InterpolatingFunctions for antiderivatives of functions that can't be integrated symbolically. However, the following code returns ...
175 views

### Manipulate a parameter within the PlotLabel

Very similar to Parameters in plot titles in which I want to call a parameter from an array using PlotLabel in my plot using ...
122 views

### Create a closed notebook

When using nb = CreateDocument[], is there an option that prevents the notebook from opening automatically? And is there a command that opens the notebook when ...
92 views

### Remove values from list element, and add to other element

Basically what I need is to make a list of 400 elements, all have value 1. The next step is to create a function, that subtracts value (-1) from an element, and adds that to another element. So: (1,...
1k views

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464 views

### Kernel crashes when plotting $z=\sqrt{(x^2 + y^2)}^0$

Bug introduced in 7.0.1 or earlier and fixed in 10.0.1 I'm plotting a 3D function, which makes Mathematica V9 (running on Windows 7) crash all the time. Does this only happen for me or for somebody ...
65 views

### Convergence problem when I try to integrate a function of one variable and one symbolic parameter

I have an integral with a parameter a and a > 0 ...
164 views

### Choppy curves with Manipulate [duplicate]

While manipulating the slider in Manipulate[], I experience choppy curves. These do however render correctly after letting go of the slider. The same phenomenon occurs when pressing the + or - button ...
323 views

### MathLink error while calling a custom Mathematica function - MLGet out of sequence

I am trying to call Mathematica 10 from F#. Following the C# sample code found in the Mathematica directory, I have written the following F# code: ...
31 views

### Is it possible to plot a List of functions with different colors in Manipulate (or with substitutions)? [duplicate]

I'm trying to use Manipulate[Plot[... to do two things at once: Plot the multiple forms a function can take depending on the chosen value of a root inside the function, and 2. show how the functions' ...
497 views

### Exporting row vector as a column in excel

I want to export a vector in Mathematica to appear as a column in Excel. I am trying A={1, 2, 3}; Export["mfile.xls", {"A" -> A}] But it is showing 1,2,3 in ...
222 views

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717 views

### Dataset in Mathematica 10.0.1

Wolfram pages "Mathematica Quick Revision History" in Mathematica 10.0.1 release says: "New operators and compositions of operators enabled for associations functions such as Dataset and Query" ...
105 views

### Is there a way to convert the mathematica document into word document in a neat way? [on hold]

Is there a way to convert the mathematica document into word document in a neat way? I tried by "save as" command and found something like Risk text format "*.rtf" but still many parts look messy..
174 views

### Display Quantity in full form

Is there a way to display Quantity[] in full form in the output? I know you could use Quantity[valuse, Unit]//InputForm, but ...
72 views

### Why does my Dynamic NonliearModelFit keep running?

I have complex data and which I am fitting to a complex formula. In order to use NonlinearModelFit I split the formula and the data into real and imaginary parts. ...
198 views

### Double integral changing the limits

This integral does not evaluate: Integrate[ Integrate[1/(E^((a - c)^2 + (b - c)^2) ), {c, 0, 1}], {b, -Infinity, Infinity}] However, reversing the integrals ...
162 views

### Building an arch in SystemModeler

I'm trying to learn SystemModeler and struggling a little... Building on the chain pendulum example from Wolfram, I've happily made a chain with revolute joints with spring/dampeners connecting the ...
93 views

### How to set the width of grid elements in pixels?

That is all: How can I set the width of columns in a Grid in terms of pixels instead of 'ems'? To be more precisely, I want to create a grid that is 330 pixels ...
403 views

### Display variable name instead of value

Is there a way to display the variable name instead of its value? for example, I need something likevarname = 1; function[varname]; and the output is ...
207 views

### Variable number of controls in manipulate

i want to add a variable amount of variables to manipulate, but i got stuck at one point and can't figure out a solution (even after reading here for hours...). I have a function (e.g. here a ...
262 views

### Conditional ListPlot with text recognition

This is my data ...
210 views

### How to get the series coefficient of a function defined by a differential equation [duplicate]

I need a Taylor series approximation for $x(t)$, which is defined by the following differential equation. $\frac{dx}{dt}=-k_1 x+(1-x)k_2 e^{-k_3 t}$, $x(0)=0$ ...
75 views

### How to overwrite a private symbol value temporarily?

I have a package file mypackage.m with BeginPackage["FooBar"] Begin["Private"] tmp=2; foo=2*tmp; myprogram[foo] ... End[] EndPackage[] The file is VCS ...
879 views

### Plotting a moving ball for projectile motion with animate

Here is my code for plotting an orbit. What I want to do is have the "planet" shown as it orbits in the simulation. Can anyone help with this? ...
963 views

### Finding exponential model from data [duplicate]

I'm trying to find an exponential model from data for a homework problem. There is an accompanying video explaining how to do the bigger problem but it omits any instructions on the step where the ...
547 views

### Applying a function to a Dataset column conditional on another slot's value

How to apply a function to a column conditional on another slot's value? The Dataset documentation show only how to apply a function to named slots independently. The ...
132 views

### Auto highlighting input cells depending on input expression (eg its Head)

Is it possible to programmatically highlight (eg, by change background color) an input cell conditional on the input expression's Head (or other attributes) upon evaluation? For example, would like ...
262 views

### Can I find constants in a function?

Let's say, I have a function with a constant, e.g. $y(x)=x+c$, and a condition $y(0) = 5$. I want to type in something like Solve[{y[x]=x+c, y[0] =5}, {c}] and get ...
282 views

### How can I resolve the insufficient memory to complete the computation problem for solving function with iterated variables?

I am trying to solve for a value x in a function where the variables varies with iterations of K. Also, there is one variable called "rvsum" which is updated with a certain formula as well. I have ...
120 views

### Why is it not allowed to define vectors of variables in a scoping construct?

The following command assigns 1 to a, 2 to b and 3 to c: ...
238 views

### Import selective elements from mixed (text and numbers) data file

How can I import only the 2nd and 5th elements (numbers, located in the 2nd and 5th columns) from all n raws of a data file (.xlxx) that contains both numbers and text. Imported data be inserted into ...
304 views

### have a function redefine itself as it maps through a list

I have a list which contains sublists, e.g. list = {{a,b}, {a,b,c}, {a,b,a,a}, {b,c}, ...} I then map a function through each sublist. This function should ...
575 views

### drawing core-shell structure [duplicate]

I am pretty new in Mathematica drawing. I am trying to draw a core-shell structure, it means a core sphere with a shell sphere, like this It can be in 2D or preferentially in 3D. Does someone can ...
48 views

### How to call a java method that takes a boolean (not Boolean)?

I'm trying to call a method on a java object that takes a single boolean argument - note boolean (native or primative) not Boolean (Object or Reference type). ...
170 views

### Select in complex dataset query

I want to use Select for a more complex dataset query. Part of the query shall be dynamic, depending on the user input. The Select part looks something like ...
105 views

### How to understand the extensional usage of Flatten? [duplicate]

Recently, I have been reading Mathematica program that written by many advanced Mathematica user, like Mr.Wizard, J.M., Kuba,etc to improve my programming capacity In the On generalizing Partition[] (...