# All Questions

527 views

### Identifying subsets with minimal standard deviation

Consider the following: ...
1k views

### Maximizing a function with assumptions

Using f[s_] := Log[(s/r)^α ((α - 2) n0 r^α + 2 π Pmax ρ r^2) /((α - 2) n0 s^α + 2 π Pmax ρ s^2)]/s When I run the following line: ...
367 views

### Automatic formatting of isotope symbols in a text cell

InputAutoReplacements is an obvious choice for formatting isotope names in text cells. I'd like to be able to type "1H", for ...
796 views

### Memory not freed after running Clear when using a Table

When I'm creating large lists with Table I see the memory footprint increasing. ...
206 views

### Sophistication of Series[…]

I'll give a concrete example and I hope that my general question will be clear. Say I have three variables, $f$, $g$, $h$, and I know that $f=\mathcal O(x)$, $g=\mathcal O(x^2)$, $h=\mathcal O(x^3)$ ...
878 views

### Procedure to find direction of triangle

I'm trying to write a procedure or function to find the direction in which a 2D triangle points. The triangle is assumed to be isosceles. While I can see the basic outline of what I want to do, making ...
2k views

### Support for pro font families?

While researching this question, I encountered an issue with Mathematica’s font selection mechanism when rich families of pro fonts are used. I can plot text in a given font with: ...
216 views

### Conditional break point in Wolfram Workbench?

Is it possible to set up a conditional break point in Wolfram Workbench? For example I want the code to stop if an index i is equal to a given value.
927 views

### Compile and “True should be a machine-size real number…” Error

I am trying to compile a little summation function. As far as I understand, because the built-in Sum function can also return ...
601 views

### How to display edge labels above edges?

The following code shows that edge labels "cover" edges in GraphPlot3D ...
479 views

### Can a Table iterator “leak” into a Module?

I want to repeatedly call a module by using a Table statement. When I use an i iterator in the Table command calling the module, I receive the error message ...
477 views

### Aligning a DensityPlot with a Plot

I am trying to show a gradient field behind a plot, and then its density in a separate plot below. I understand (as in this question) that this must normally be done using the ImagePadding directive. ...
463 views

### Random variables with transformed discrete distributions cannot be applied to Probability[] function?

I have two discrete uniform distributions over same support: Dx = DiscreteUniformDistribution[{-8, 8}]; Dy = DiscreteUniformDistribution[{-8, 8}]; I use ...
250 views

### What default theoretical distribution does Mathematica use in PearsonChiSquareTest?

I used Mathematica's function PearsonChiSquareTest to test whether the data were drawn from a normal distribution. As in the reference, I expected Mathematica to compare the result to a normal ...
324 views

### Why does Mathematica choose the second function definition?

While working on a solution to this question I've come across a case where I simply don't understand Mathematica's behaviour. I've got the following definitions: ...
311 views

### Why does Installing small caps fonts in OS X cause notebook Text cells to use that font?

I installed Adobe Type 1 Times Roman SC (small caps) and Times Roman Bold SC fonts on my Mac OS X system. Now every old or newly-created Text style cell in every ...
717 views

### How can I completely ban usage of some functions in output and mandate use of others?

For example, I hate that Mathematica uses Pochhammer symbol in outputs and prefer all the expressions in Gamma function. How can ...
1k views

### Is there a function to calculate studentized range?

Is there a built-in function for studentized range or do I have to build it myself? Is there a test of normality for the studentized range?
3k views

### Can one find the beat of a tune with Fourier analysis?

I'm trying to find out if it's possible to find the beat of a tune by Fourier analysis with Mathematica. I'm taking a 44.1 kHz sample sound and hoping that I might get a nice peak for a frequency ...
994 views

### Growth of functions

Does somebody know if Mathematica can be used to calculate the growth of functions, that is in Big O, Theta, and Omega and find proper $n_{0}$ and $c_{1}$, $c_{2}$ respectively?
2k views

### Is the Wolfram | Alpha output in Mathematica not Alpha Pro?

Mathematica 8 includes "Wolfram | Alpha integration", but the features of Alpha available in Mathematica seem not to include many of those available in the "Pro" version of Alpha. Does Mathematica 8 ...
618 views

### What's the difference between EdgeDetect and MorphologicalPerimeter (for a white background)?

I am trying to understand the differences between EdgeDetect and MorphologicalPerimeter (while researching this other question). ...
1k views

### How to divide a graph into connected components?

Suppose I have some edges: edges = {1 -> 2, 2 -> 3, 3 -> 1, 4 -> 5, 3 -> 6, 7 -> 8, 8 -> 9, 8 -> 10}; And I make a graph: ...
302 views

### FunctionInterpolation Errors / Question re Evaluation Order and Options

I have using Mathematica functions that takes a Cartesian coordinate relative to the Earth (xyz) and converts it to a latitude, longitude, and altitude (lla). And here it is: ...
787 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 (...
426 views

### How to separate paths from the output of EdgeDetect?

I have been trying to find a way to separate the various closed paths that can be output by EdgeDetect. For example, taking the output of: ...
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181 views

### Is it possible to manipulate graphs by hand? [duplicate]

Possible Duplicate: Generating graphs interactively (GUI) If I plot a graph, is it possible for me to manipulate the vertices such that when I move them, their attached edges will follow. ...
410 views

### Make EventHandler work for clicks and keys in a Dynamic display

I am trying to write a way that will do certain events depending on what screen is showing. What happens so far is that the screen will change in accordance to a click, but when you try to do the ...
406 views

### Short syntax for accessing SystemUtilitiesHashTableAdd and SystemUtilitiesHashTableGet

I have a need for a struct analogue in Mathematica. After reading this post I came to the conclusion that SystemUtilitiesHashTable is one of the best options. But ...