1
vote
0answers
26 views

embeding an image in a cdf deployment

I would like to embed an image into CDF. Import function just import the function from a pathway but I would like the image to be present in the CDF or nb file as a part of it not importing. ...
-7
votes
2answers
46 views

Solve using auxiliary variable [closed]

I can not think how to begin I need a help here please $x^{\log x}-x^{\log \frac{2}{x}}=1$
0
votes
1answer
75 views

How to plot a solution set? [duplicate]

I have two functions, let's call them $F1$ and $F2$. Both take the same three arguments: $x1, x2$ and $\epsilon$. With every $\epsilon^* \in [0,1]$, there should be either zero or one unique point ...
2
votes
0answers
30 views

Indenting Bulleted List in Notebooks [duplicate]

I am writing a paper using Mathematica Notebook and need to create a bulleted list. I saw this answer (Indenting bulleted lists in notebooks) and was able to create a new stylized notebook with the ...
-3
votes
0answers
25 views

How should I solve this system of equasions? [migrated]

I have the system of differential equasions: $$\begin{cases} I_1 \ddot{\varphi_1} + b_1 \dot{\varphi_1} + c(\varphi_1 - \varphi) = M \\ I_2 \ddot{\varphi} + b_2 \dot{\varphi} + c(\varphi - ...
3
votes
1answer
45 views

No font on axes in Plot3D graphics

I am running Mathematica on Linux (Raspbian to be exact), and it seems I am missing some Mathematica fonts: Is there a way to fix this?
0
votes
0answers
44 views

the outer totalistic rule [closed]

I have a question about the outer-totalistic rule. i have been asked to rune the rule 258752 and start with a random state that each cell can be black or white, but when i typed my code i got that the ...
3
votes
2answers
582 views

Finding very weak peaks

I measured 1d particle oscillations. The particle is oscillating with a certain frequency, whereby its motion is disturbed. Now I would like to to find all peaks of the particles trajectory. One ...
1
vote
1answer
98 views

Mathematica Precisions vs Doubles in C/C++

I'm having a bit of an issue regarding numerical precision and I'm not sure how to deal with it. I have a certain randomly generated matrix, say $M$, that I wish to compute the eigenvalues. The ...
7
votes
2answers
435 views

Remove object from the image

How to remove spider from "spider web"? there is good example in documentation center but how to make black marker of spider?
0
votes
2answers
47 views

Simplify Expressions used to define Region

For example, RegionPlot[{x + y > 1, x - y > 1, y - x > 1, -x - y > 1}, {x, -2, 2}, {y, -2, 2}] can be somehow written as: ...
0
votes
0answers
19 views

Evaluating UnitConvert inside LogPlot

I imported several Physical Quantities with their units and doing single calculations with them works fine and return the right unit, which I can change by UnitConvert[]... For the LogPlot I made a ...
1
vote
0answers
32 views

Trouble interfacing hardware and reading data from a serial port with Mathematica

I am trying to communicate with a device using a serial port to usb connection. I am using the following code: ...
4
votes
1answer
120 views

eigenoscillations of a sphere

I would like to animate the eigenoscillations of a sphere (Earth?). It's just simple to draw images one by one: ...
0
votes
1answer
33 views

Differentiate contour color based on different functions rather than the contour values

I'm plotting contours by replacing different set of parameters into a ParametricNDSolve result. For instance I have three different sets of parameters {n,m,Ea,LogZ} that will be replaced into the ...
5
votes
3answers
305 views

How to plot a lemniscate on a surface

How do I plot a lemniscate: ContourPlot[(x^2 + y^2)^2 == 2*(x^2 - y^2), {x, -1.8, 1.8}, {y, -0.63, 0.63}] on the following surface: ...
0
votes
0answers
42 views

Problems with numerical solution of differential equation

I'm trying to obtain a numerical solution for my differential equation. But i have the following mistake: Encountered non-numerical value for a derivative at z == 0. Can somebody help with that? ...
2
votes
1answer
102 views
0
votes
0answers
4 views

tan(arcsin x) if x>0 [migrated]

I drew a triangle with 1 as the hypotenuse and x as the side opposite of sine. I'm getting a blank on how to get the bottom part of the triangle. Would the bottom side just be cos theta? ie. tan theta ...
0
votes
0answers
26 views

factoring a phrase of matrix elements and calculating main eigenvalues

I have a question containg two parts: 1-If we have a matrix as ...
-5
votes
1answer
32 views

What isprobability of not being dealt a 6 [closed]

What is the probability of not being dealt a 6 in a 52-card deck?
0
votes
0answers
56 views

Factor Integer function with variable arguments

I'm trying to build a function that gives the highest power of a prime factor of a number. The following works perfectly: ...
0
votes
1answer
52 views

Partial derivative of function of two variables

This question is not enlightening nor is it difficult. But some part of my notation or how I have defined my functions is messing up the D[f,x] function. ...
2
votes
0answers
41 views

Latest changes in Documentation Center

I used to be able to copy code selectively in the Wolfram Documentation Center. Clicking on every piece of code used to generate a pop up in the format of InputForm (I think?). I really liked it ...
1
vote
1answer
62 views

A little confused about coordinate conversion

I'm not entirely sure how to convert from spherical coordinates to Cartesian coordinates, I believe the way to do it is by using the following code: ...
0
votes
1answer
32 views

How to fix a procedure to work for another functions? [closed]

I have a procedure. It takes points and draws rectangles. The problem is to change the procedure to work not only with standarts functions. And the list of points must be : ...
1
vote
1answer
57 views

How to write a loop to run iterations of functions to obtain different values? [closed]

I am trying to iterate the function a, b and td2 (10 times) inside a For loop. This will gives me 10 different values of td2 which eventually gives me 10 different values of fullData2. In another ...
3
votes
2answers
64 views

DiscretizeRegion does not include the boundary specified in ImplicitRegion (10.1)

I am trying to do some 3D PDE solving, and I keep running into problems with boundary conditions because my meshed boundaries are not what I expected. For example, the following code ...
2
votes
1answer
90 views

Mathematica doesn't know about the absorption identity? [closed]

The well-known binomial absorption identity states that $$n\binom{n-1}{k-1} = k \binom{n}{k}$$ However, Mathematica gives ...
0
votes
1answer
36 views

Sums with index expressions instead of variables

Often I replace $k$ with, say, $m-k^2$ in a sum, obtaining something like this: $$\sum_{0\leq m-k^2\leq n} f(k)$$ Is there a way to input these without manually solving the inequalities?
0
votes
0answers
57 views

Remove zigzags in the line

...
0
votes
0answers
80 views

How can we compute a factorization for symmetric indefinite matrices?

I want to compute the factorization of (real) symmetric indefinite matrices in Mathematica. For symmetric positive definite matrices, we can use a permuted version of Cholesky factorization, ...
2
votes
3answers
231 views

How to use Select with lists

I am trying to do: Select[minimus[[6]], #1[[2]] < (min[[6]] + emin[[6]]) &] applied to all elements of minimus, ...
0
votes
2answers
147 views

Why can't Mathematica integrate this PDF?

I'm trying to integrate a transformed Gumbel PDF in Mathematica. Integrate[E^(η*(-(x - q)) - E^((-η)*(x - q))), {x, t, ∞}] However, it doesn't compute. It's fine ...
1
vote
1answer
82 views

Solve the interpolating function

I would have asked how to obtain the x given the y in an interpolating function, and I found the answer from here. But another question raised. I was dealing with measurement of the spectral ...
5
votes
1answer
71 views

How to match Association[]?

The following input: Cases[{"key" -> Association[]}, HoldPattern["key" -> Association[]]] Returns {}. Why does it not ...
0
votes
1answer
52 views

Greek letter as TraditionalForm not working while export to PDF

Below is the code for an example plot, ...
2
votes
0answers
96 views

Image3D interactive manipulation slower in 10.4.1?

I've upgraded to MMa version 10.4.1 under MacOS 10.11.4 on a MBP Retina. We use Image3D a lot in our work and it seems like it has gotten very very slow in this ...
5
votes
2answers
247 views

Lagrangian to Hamiltonian

I want to go from Lagrangian description to Hamiltonian one. Using the example given by Mathematica I do something like : ...
0
votes
2answers
74 views

BarChart with error bars

I need to plot BarChart with the error bars. What's the most straightforward way to do it?#plot range from 8 to 10 {8.5,8.6,8.9,9.5} and error bars of 0.1 and labeling of a,b,c and d. Is there ...
3
votes
1answer
59 views

Add columns with dummies and specific headers to dataset

I got a dataset that looks like the following example: ...
0
votes
0answers
42 views

Fitting 6 differential equations to 6 sets of data

I am using the newest Mathematica and I am trying to fit a set of 6 linear differential equations to a set of experimental data for each of the six variables. I am a baby beginner at this and could ...
5
votes
2answers
66 views

ChemicalData[] error: “L-Cysteine” is not a known entity, class,

If I execute: ChemicalData["L-Cysteine", "MolarMass"] I get the following error: ChemicalData::notent: "L-Cysteine" is not a known entity, class, or tag for ...
2
votes
3answers
106 views

Strong glitch with Evaluate in Manipulate

I'm experiencing a strong evaluation problem for a Manipulate box and I can't find the best solution yet. Here's a MWE to show the glitch : ...
1
vote
1answer
27 views

Mathematica Empty Plot FourierSinSeries function

I'm trying to get a plot of different order Fourier series of the function x-1, why does Mathematica give me an empty plot? ...
1
vote
1answer
59 views

Plotting Invariant Manifolds of the Henon Map

Given the following map: \begin{align} & x_{n+1}=-y_n+2x_n^2 \\ & y_{n+1}=\beta x_n \end{align} for $β \in (0,1)$, $x_n \in \mathbb{R}, y_n \in \mathbb{R}$ (which is a one parameter version ...
0
votes
1answer
34 views

Restricting the evaluation of variables [closed]

Hopefully you understand my question. I m calculating inverse kinematics of a robot and each subsequent value is dependant on the one before. For simple porting into c++ I would like something like ...
5
votes
2answers
135 views

How to refer to amino acids by their single-letter abbreviations in ChemicalData[]?

ChemicalData["AminoAcids"] returns the 20 amino acids. There are some properties available, like the molar mass: ...
23
votes
5answers
4k views

Make a beautiful Moiré effect

How do I make the following Moiré pattern? I tried: ...
1
vote
1answer
33 views

FindMinimum step size too small

I'm running a simulation of an electromagnetic system using Radia, an external code that is run from Mathematica. I want to use FindMinimum to determine some ...

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