# All Questions

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### Use MATHEMATICA to graph the following curves on a single pair of axes:

Use MATHEMATICA to graph the following curves on a single pair of axes: f(x)=x^3, f(x)= x^5 - 2 x^3 - 3 x
55 views

### Calculate the value of g, the acceleration due to gravity at the earth’s surface

According to Newton’s second law of motion, a body near the earth’s surface falls vertically downward according to the equation $\quad s=s_0+v_0\,t+\frac{1}{2} g\,t^2$ where $\quad s$ is the ...
14 views

### Data acquisition from NI USB-6008, NI-DAQmx

I want to connect an interface from National Instruments to Mathematica in mac, i already download the driver Ni-DAQmx_Base_3.6 from NI page. How to tell Mathematica to dump data from the interface?
40 views

### Dsolve implicit solution to a Differential Equation [on hold]

I would like to know if there is a form that Mathematica can give me the implicit solution to an ODE. When I use Mathematica of Alpha it it always seem to solve it for y (the dependent variable) but ...
45 views

### Computing the Hurst exponent or fractal dimension of fractional Brownian motion

The Hurst exponent is related to the fractal dimension by noticing that the fractal dimension $D$ is equal to $2-H$, where $d$ is the intrinsic dimension and $H$ is the Hurst exponent, for 1-D ...
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### Approximate the largest and the smallest values of the integral [migrated]

How do I solve this:approximate the largest and the smallest values of the integral for
23 views

### SyntaxForm not correctly parsed by FrontEnd

When using TagBox with SyntaxForm, I noticed sometimes it is not well parsed by the ...
43 views

### CPU usage remains at 13% even after I quit the kernel

I use Mathematica 10.0.0, and after I run it for a while (a few simple commands for example) the CPU usage (Mathematica.exe) remains at 13% even after the calculations are over. I quit the kernel but ...
40 views

### Import iTunes xml data and convert it into a dataset or table

I have an xml file with song data from iTunes (https://dl.dropboxusercontent.com/u/1012958/iTunes%20Library.xml) and I'd like to import it to Mathematica to do some statistics. I get an XMLObject like ...
178 views

### Plotting spherical surfaces

I am trying to make surface plots of squashed spheres. The spheres are defined by a list of points. For simplicity, consider the round sphere: ...
27 views

### Is this the correct method in using bootstrapping to determine a lower confidence bound?

Quite often in industry, due to cost and schedule constraints, decisions must be made on small sample size data. I have 4 cycles-to-failure values resulting from running samples to failure in a ...
197 views

### Set of integers not divisible by smaller set of primes

Let $p_n$ be the sequence of prime numbers, and $s(x,n)=$ the set of integers less or equal than $x$ that are not divisible by $p_1,\dots,p_n.$ I can define it as follows: ...
49 views

### Frame ticks not showing in ListLogLogPlot [on hold]

I want to make the following plot: ...
109 views

### VectorPlot differences between v9 and v10

The following code displays differently with v9 & v10: ...
51 views

### Advanced SQL-type select statements (filtering) on Datasets

I'm trying to improve on mathematica's handling of datasets. I'm currently writing this function that should do the following. Suppose I have a dataset with columns, e.g. ...
170 views

### Optimizing Monte Carlo simulation of a Pred-Prey model

My assignment and code As part of an assignment for one of my classes, I'm trying to run a "massive" Monte Carlo simulation in Parallel on the follow model: ...
70 views

### Plot one set of “x” with at least three sets of “y” in different scale

I'm sorry if the question is too obvious, but I haven't been able to find a straight answer for Mathematica. I have 1 set of "x" with at least 3 sets of "y" in different scales. I need to plot them ...
71 views

### I need to remove a line from a ParametricPlot

What happens is that when I make this ParametricPlot: ...
58 views

### How to evaluate integrals over matrices [on hold]

Is it possible at all to evaluate integrals with respect to a matrix (dA, where A is a matrix) in Mathematica?
81 views

### Is undocumented \.bd = ½ bad to use?

I want to use \.bd which leads to ½ as part of the name of a symbol in the front end (e.g. ...
27 views

### DelaunayTriangulation in Mathematica V 7.01.0 [duplicate]

I have a list of 2D point coordinates in the form of {...,{xi,yi},...} and want to make a triangular mesh for it. By using DelaunayTriangulate function in Mathematica V7, it gives me something that ...
30 views

### Help with NDSolveValue

I have a small problem solving Schrödinger equation. Here's setup: ...
123 views

### ImageTransformation: polar to cartesian

I am working on something that requires the polar transformation of some images. I implemented this transformation with ImageTransformation: ...
35 views

### Getting message DSolve::conarg:

I want to solve a simple linear PDE about $p_0$ which is a function of ξ, ζ and τ. However, the boundary condition is defined at ζ = h, which is a function of ξ and ...
47 views

### How to select elements with a specific style of a list?

Suppose I have a list: where 3 'up's of the list are red(I've made it to Cell Expression as follows). ...
68 views

### Plotting a region with thin cusps in high-definition via RegionPlot

I want a high-definition picture the real solutions $(s_1,s_2,s_3)$ of the system of inequalities \$3 s_1^2 < (s_2 - s_3)^2 + 2 s_1(s_2 + s_3)\\ 3 s_2^2 < (s_1 - s_3)^2 + 2 s_2(s_1 + s_3)\\ 3 ...
110 views

### Replacing graph nodes with matrices

I would like to label a graph with matrices. Suppose the graph is simple: And I have an array mats that contains the labels for vertices 1,2,3,4 (these are just random 0-1 matrices; ignore the ...
129 views

### Mapping points on the unit circle

I have a set of points P that are evenly spaced on a square grid of length 1... I would like to map these points to the circle of radius 1 as nicely as possible, while preserving relative positions ...
56 views

### Adding Text to a ListLogLinearPlot [duplicate]

I have a problem with adding text to a ListLogLinearPlot plot. The text just doesn't show up anywhere. If I use the normal ListPlot, the text coordinates go perfectly wherever I want them to: ...
35 views

### Correct handling of milliseconds in a date time string

DateString[{2014, 5, 7, 13, 47, 44.760}, {"Year", "-", "Month", "-", "Day", " ", "Hour", ":", "Minute", ":", "Second", ".", "Millisecond"}] Returns ...
66 views

### Conceal GUI source code

I'm working with a simple software application written in Mathematica, composing of several .nb and .m files. The application is centered around a simple mathematica GUI, which includes several ...
43 views

### Is there a reason why some specific arrangement of scattered grid points would yield bad RBF (Obtuse package) interpolation results?

I have an arrangement of grid points given by the figure below (the datagrid data is posted below at the end of the post): They correspond to electrode positions of an EEG signal. I am ...
39 views

### How to display movie without controls [duplicate]

I would like to display a sequence of images as a movie within mathematica. I am aware of ListAnimate, but I do not want the various controls included, and there seems to be no way to remove them.
187 views

### Integral of x^p

Can anyone explain why Mathematica does not return a conditional expression that handles the case of p=-1 for Integrate[x^p,x]? ...
56 views

### Problem constructing Association tables with some operators

First, set up the example Dataset from the documentation: titanic = ExampleData[{"Dataset", "Titanic"}]; Why does this fail: ...
17 views

### Programmatically control notebook resize area

How might I programmatically control the notebook resize area? In particular, I want to be able to execute "Restore Down" when the window is maximized.
188 views

### Speed up Schwarz-Christoffel mapping

I would like to ask your advice how to speed up Contour and Parametric plots in the following example. Let as start by defining a function ...
71 views

### Can Mathematica solve 625 linear coupled differential equations?

I'm trying to solve an atomic physics problem in which I need to solve 625 linear coupled differential equations. I generated them by using the AtomicDensityMatrix Package. They are Liouville ...
34 views

### Overlay 3d plots in Manipulate [on hold]

I want to find parameters of the fitting of data by overlapping the data with my model function. To find the parameters I'm using Manipulate function. And to make sure that the fitting is close to the ...
68 views

### Turning sound into a graph

I'm writing a comprehensive text on graphs and Mathematica and in this context I have this, let's call it, creative gap between sound and graphs. There are plenty of ways one can create graphs from ...
157 views

### Why does a certain CSV file import properly into LibreOffice but not into Mathematica 10.0?

I'm working on a project involving data manipulation and it involves working with CSV files. I know that the files are properly formatted as when I import them into LibreOffice, all of the columns ...
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I decided to give the SocialMediaData functionality of MMA10 a try but it does not seem to work for Twitter. The first time I call ...
81 views

### Menu item “Interrupt Evaluation…” missing in V10

The menu item “Interrupt Evaluation…” seems to have disappeared in Mathematica 10 on OS X. Well, this is a bummer. I personally use Mathematica for very long calculations, and I was using this ...
50 views

### Why does WordData fail to find “PartsOfSpeech” when given a list of two words?

I have the following sample code. StringSplit["a test string", " "] Thread[WordData[%, "PartsOfSpeech"]] The output I get is: ...
64 views

### How to solve two non-linear equations in two variables [on hold]

I am a new user of Mathematica. I have the following non-linear equations in two variables: How can I solve this system with Mathematica?
119 views

### Fitting numerical model to experimental data

I have diffusion equation with the initial/boundary conditions: ...
32 views

### “There are no symbols matching \”\!$$\“Global*\”$$\“” [on hold]

"There are no symbols matching \"!(\"Global*\")\"" what's the probleme with this error and how to solve it?
28 views

### Is “MaxMessageCount” broken or is its function counter-intuitive?

As noted by kguler the Front End option: MessageOptions -> "MaxMessageCount" does not appear to have any affect on the number of times a Message is repeated ...