All Questions

Below is a plot I made in MATLAB. I need to recreate the above plot in Mathematica. This is what I'm able to achieve on Mathematica 12.2 (the slight formatting differences compared to the MATLAB plot ...

Suppose I get interpolating function in the solution of the complicated differential system. I plot a solution for various input values that control the outcome of the solution. Some give exponential ...

I'm running into a strange issue with ListPlot. I'm trying to plot some data with particular values for PlotRange, PlotLabels, and AspectRatio. However, if I enforce the desired values for PlotLabels ...

I would like to take a numerical transform of interpolating functions which is a solution of at least two coupled differential equations. But for this question, I am simplifying the solution to make ...

Given a list of elements, I want to produce something similar to Tally, but instead of counting how many times each element occurs in the list, I instead want a ...

this is my first question here. I am having trouble, I might be able to express what I want in Matlab but I suffer to do that in Mathematica. So I have a direction cosine matrix that is solved in ...

z to quadratic function with conformal map. How to plot this in Wolfram Mathematica or Geogebra? Then I can write that code in $\LaTeX$. https://cmgreen.io/images/...

Studying an interesting article of Daniel Lichtblau, I consider a variation of an example from it, calculating an improper integral ...

Could you help me, please? I have two complex functions of real variable f[x] and fc[x] such that one is a conjugate of another one. I'd like to take a conjugate of an expression that includes both of ...

I have an mxn type matrix, my question is; how to find the reduced form of A using the Gauss elementation. On each column point reduced form. 2.If A is square, How do I find the determinant using the ...

In Mathematica several versions of a function can have the same name with a pattern distinguishing which version of the function should be used for which type of input. Here is a minimum working ...

I have a very long expression involving a sum of exponentials, say: Sum[(RandomReal[] + RandomReal[] a) Exp[2 I ii x Pi], {ii, -10, 10}] I want the fastest way to ...

having this command: Table[Plot3D[u[r, phi, n] // Re, {r, 0, 4}, {phi, 0, 2 Pi}], {n, 0, 5, 1}](*Real Part*) I would like to label all the six plots that are ...

If I evaluate Reduce[#, x] & /@ {{4 x > 1, 2 x < 5}, {5 x > 1, x < 5}, {4 x > 1, x < 5}} the result is ...

I have a question. In regards with the given computation, ...

I use wolframscript to generate hundreds of images like this visualization of 4fold symmetry of octahedron (to be combined in animation videos) like so: ...

I have three lists: x = {x1, x2, ...}, y = {y1, y2, ...}, yErr = {y1Err, y2Err, ...} that I want to join into the following format: ...

I'm looking to graph a simple one-way Markov chain, which is effectively a decision tree with transitions probabilities. One way I've got this working in here in an MWE, here's a simple Markov chain ...

I have this code to get some density Plots, and the ticks on the x-axis has two decimals but at zero appears only one 0.. How can I make all ticks consistent such ...

We are searching for an analytic solution to the given equation for $f_\text{n}(u)$, for $u \in [0, d/2]$ (this problem is a snippet from this paper here) $$-\partial^2_{u} f_\text{n} + \left\lbrack 1 ...

After starting Mathematica, My computer will Blue Screen. Mathematica version is 12.2 win10. An error of Win10 shows ...

I am tring to solve set of PDE equations with parameters of v[z],q[z],T[z,t,r]. Below is my ...

How i can generate rectangular function with plot legend in phase like shown in figure below.

If the result of FindInstance[expr<=0,vars,dom] is empty set, can it mean that expr is always greater than ...

I want to do the follow: Write a function $f$ such that if I evaluate $f(ax+by)$, it returns $f(a)f(x)+f(b)f(y)$. How can I do that? I tried to look in the help for "homomorphism" but didn't ...

Is there anyway to enlarge the output picture and coordinate axis together like Matlab? Like MatrixPlot or other Plot function. In matlab, there is a zoom button in ...

I have this data, which I used the following to Import. ...

I have trouble, i need to do several computations inside a loop using values in a logaritmic scale, is this possible? Inside of the cicle i create a several data sctructures, and it currently works ...

In Mathematica program, How to define a product of two elements $x$ and $y$ such that $$yx=qxy$$ with $q$ is a number commuting with both $x$ and $y$.

I would like to apply a given function $f$ to each one of the coefficients of a polynomial. For example if $P=(x - 2) (y^2 + 1)= -2 + x - 2 y^2 + x y^2$ and $f(c)=c^2$, I would like to obtain the ...

I have the following code ...

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I have this function that creates a plot in Wolfram Mathematica: ...

I have the system $$Y' = \begin{pmatrix} -4 & 4 \\ -8 & 4 \end{pmatrix}Y$$ Using DSolve DSolve[{x'[t] == -4x[t]+4 y[t], y'[t] == -8x[t] + 4y[t]},{x,y},t] ...

I have a problem with exponentials and the use of the commands N and Collect. I am trying to write a code that generates a very ...

I want to solve the following equation to find k at r max is 15,17 and 19 and plot tension(kx) vs angle(theta) there have any way to solve if it have many unknows? ...

Could you help me, please? I'd like to evaluate the following expression: f' := 1/g[x] L[x_]:=L[x]=D[f[x]g[x], x] Thus, I'm ...

In relation with the question I posed on MathSE here, I want to ask how can Mathematica give an answer to my problem. The context I am trying to get rid of the integral over $y$ in $$\begin{align} I=\...

I have a 4x4 matrix $M(u)$, originating from second-order time-independent perturbation theory in the small parameter $u$. The characteristic equation is a fourth-order polynomial and can be solved ...

Context: I want to apply an exponential matrix on a vector. The size of the matrix (which then I apply the MatrixExp on) is size of 50x50, and not diagonal. For reason I don't know, Mathematica take a ...

A follow up from a previous question Detecting patterns in a graph network Thanks to @Szabolcs ...

If I have a list: {ball,ball,BINDIVIDER,ball,ball,ball,BINDIVIDER,BINDIVIDER,ball,BINDIVIDER,ball} The balls and bins can be in any permutation. Then, the ...

Consider the following code NDSolveValue[{ x'[t] == x[t]^a, x[0] == 0 }, x, {t, 0, 10}] which solves the equation $x'(t)=x(t)^a$, for some exponent $a$, with ...

please help me to see what wrong with my code? ...

Asymptotic Output Tracking: Code Issues Abstract state-space: \begin{cases} \dot{x_1}=x_3 \\ \dot{x_2}=-x_2+\frac{df}{dt} \\ \dot{x_3}=-x_3+x_2 \cdot \alpha \sin(\omega t) + u \\ \dot{x_4}=-x_4+x_2 \...

Good morning, could someone help me to propose this exercise to be able to solve it Calculate the Fourier coefficients c_s of the transmittance function t(x)= t(x+P_x) given in|x|<P_x/2,...

I asked this question yesterday about fitting my data to logistic function and I received the right answer, but now I have to fit my data ...

I want to plot a complex momentum in complex plane where the y-axis shows imaginary values and x-axis shows the real values. I tried ReIm command but it plots Re and Im parts not Re vs Im. Below is an ...

Good morning, someone would be so kind to explain the steps that I must follow to be able to pose this exercise. Someone would be so kind as to explain to me how to use Mathematica commands in order ...

How to pack n equal disks(radius a/2) with maximal area inside a given rectangle ? I'm trying to solve this problem using Mathematicas Region functions. Here my approach: Maximize the area of the ...