Questions tagged [mathematica-online]

For questions specific to the Wolfram product Mathematica Online.

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SingularValueDecomposition In Mathematica Software [closed]

I'm computing the SVD of a 4X4 matrix with 1 variable present in the matrix, but the output of the Mathematica program is not showing the result. I have included the matrix and error. Can anyone can ...
MUKESH KUMAR SAMAL's user avatar
1 vote
2 answers
139 views

Mathematica cannot solve this complicated integration

first-time here. I am trying to use Mathematica to evaluate a solution from Duhamel's principle, the integration looks like $\int^t_0\frac{e^{-ks-\frac{r^2}{2(2Ds+\sigma^2+2D_pt)}}}{2Ds+\sigma^2+2D_pt}...
CalBZ's user avatar
  • 11
1 vote
0 answers
88 views

How can I rasterize expressions with Runic characters in Wolfram Cloud?

Here is my function to create polynomials with a specific format: ...
Teg Louis's user avatar
  • 585
0 votes
1 answer
111 views

Help in solving the following bvp

...
Trueee's user avatar
  • 41
4 votes
3 answers
139 views

I need help in complements of subsets

I have two subsets and tried this expression with MapThread: ...
Alyasaa Jasim's user avatar
1 vote
1 answer
159 views

Could anyone please help me find the error in the code

I have a problem with DSolve and the following code: DSolve[{D[Ψ[x], x, x] == κ^2 Ψ[x], Ψ[0] == Ψs, Ψ[Infinity] == 0}, Ψ, x] ...
Trueee's user avatar
  • 41
0 votes
0 answers
33 views

How Do I Graph an SVEIAR function with the reproduction Number

Just need help figuring out how to plot a graph of an SVEIAR model with its' reproduction number. I'm a bit confused on how to properly make a graph based off the model and reproduction number. ...
izayafiji's user avatar
0 votes
0 answers
52 views

I need help with plotting and SVEIAR Code with the Reproduction Number on Mathematica

I need help because everytime I plot it doesn't work. ...
izayafiji's user avatar
0 votes
0 answers
52 views

Solving polynomial roots of any degree only by Vieta's formula

I have already wrote the code that solves it for quadratic formula and I'm curious if this is possible to make that function work with any kind of polynomial(higher degrees) and solving roots only ...
Karol Bargieł's user avatar
0 votes
1 answer
65 views

How to make code for boundary value problem?

I am trying to make graphs given by using this code but I failed. Please correct this code. ...
riaz iram's user avatar
1 vote
1 answer
69 views

Animate function error

I'm new to Mathematica and I'm trying to plot a interactive graph of a curve with a slider that shows the tangent to the curve in whichever point of the interval, my implementation is ...
Weyr124's user avatar
  • 15
2 votes
4 answers
379 views

Horizontal version of Print[]

With the following code I produce the binary digits of n=13: n=13; Q = Quotient[n, 2]; While[Q != 0, Print[Mod[n, 2]]; Q = Quotient[n, 2]; n = Q] The problem is ...
Jamai-Con's user avatar
  • 153
2 votes
2 answers
490 views

Mathematica and WolframAlpha gives wrong result about DiracDelta function

Wolfram alpha says the integral does not converge and also Mathematica didn't give answer to the integral: $$\int_0^t\delta(z)\delta(t-z)dz$$ which should gives the result of $\delta(t)$ as you will ...
Mohamed Mostafa's user avatar
0 votes
0 answers
51 views

I am having problem with initialization of parallelization in Mathematica

I have been using parallel computing in Mathematica for a couple of months. Today suddenly, parallel kernels are not starting. Can anyone tell me what can be the potential reason? ...
INDRANIL MAITI's user avatar
2 votes
1 answer
81 views

how to solve problem involving a condition?

I am new to mathematica, therefore this might be a pretty simple question, My problem is for example: Compute the eigenvalue for matrix A= {{1,c},{1/c,1}}, c>0. when the matrix becomes more ...
Zeriob's user avatar
  • 23
-2 votes
1 answer
118 views

How to find an approximate equation from a given equation using Mathematica? [closed]

I am interested in finding an approximate equation based on a given equation using Mathematica. Specifically, I am working with the quantum illumination transmitter's quantum Chernoff bound (...
Sumit Sagar's user avatar
-2 votes
1 answer
84 views

List of Integers [closed]

Evan writes down a list of 15 integers, each of which is either 0 or 1. He does this in such a way that there are never three consecutive integers in the list that have the same value. How many ways ...
Natalaya's user avatar
2 votes
1 answer
81 views

Nintegrate and Integrate don't give same results

I am trying to compute an integral of the form $\int_{\frac{1}{10000}}^{\frac{1}{1000}}g(x)x e^{3ix}$ in Mathematica both numerically and analytically. $g(x)$ is equal to ...
HadamardN2's user avatar
1 vote
1 answer
89 views

Question about numerical integration of a double integral

I am trying to numerically integrate the following double integral in Mathematica for different values of t. ...
HadamardN2's user avatar
-1 votes
1 answer
74 views

Triangle with three corners, find area f(a) and when function has its min-value

This is my code: ...
Leolo.11's user avatar
1 vote
0 answers
56 views

Problem of " The kernel is not responsing to dynamic evaluation "

I am having this error again and again while using parallel computation. The code is fine because it runs when I am not using parallel computation. But as it takes a lot of time to run ( around 3 - 4 ...
INDRANIL MAITI's user avatar
0 votes
0 answers
34 views

I am having problem in paralleltable and parallel sum ( Parallel computation in Mathematica)

You will receive the code here I want to do parallel computation here because I have planning to go further level and it will take a much longer time. I could not understand what this error means and ...
INDRANIL MAITI's user avatar
0 votes
0 answers
32 views

Question about the behavior of a data point as a function of time

I have a set of data points. The first coordinate is time and the second coordinate is energy. I am trying to figure out how the energy is decaying over time. Particularly, I have to find if it is ...
HadamardN2's user avatar
0 votes
1 answer
44 views

How to export file in For loop? [closed]

I am using the following code to export a file with three columns. I am using the Export file command like this but not getting the output. Can someone please help with this? ...
AAA's user avatar
  • 197
1 vote
1 answer
82 views

A 3-dimensional principal value integral [closed]

I am trying to find a principal value integral of the following form in Mathematica. $f(z)$ is a smooth function. The problem is that Mathematica is very slow in this computation. $\int_1^2 dx\int_1^3 ...
HadamardN2's user avatar
2 votes
1 answer
96 views

Limit of Taylor coefficients

I want to calculate the following limit: b[n_] := (D[1/(1 - t), {t, n}] /. {t -> 0})/Factorial[n] Limit[b[n], n -> ∞] (* Indeterminate *) where ...
SKS's user avatar
  • 23
0 votes
0 answers
76 views

How can I upload a package which is saved locally as a ZIP file to Mathemtica Cloud and Load the package?

I am using the online Mathematica Cloud. I have one complete package(in this case, a group theory-related mathematics package), which is saved locally as a ZIPed folder. The ZIPed folder contains ...
Sanmit's user avatar
  • 1
4 votes
3 answers
577 views

Mathematica not solving this integral

I am trying to solve for But it is returning the same. I need this to complete my research. Please help. The expression used by me in mathematica is: ...
VIBHOR SINGAL's user avatar
0 votes
0 answers
65 views

Some typical symbolic mathematica code in python with the help of Wolfram Client Library for Python

I have downloaded wolfram library in my vs code and ran few common seeing Wolfram Client Library for Python e.g: ...
Ri-Li's user avatar
  • 101
2 votes
1 answer
74 views

Solving equation using mathematica

How I can solve the equation : $$R -\tan^{-1}[(m1/m3)*(k3/k1)] - \tan^{-1}[(m1/m2)*(k2/k1)]=0$$ I tried on it using findroot as following : ...
A.J.H's user avatar
  • 81
1 vote
0 answers
48 views

Plot the graph with two best response functions, Mathematica

I have another doubt regarding Mathematica. This is probably another question that can be easily answered, but since I'm a beginner it's a while that I'm stuck. Since I'm using Mathematica online, the ...
Gabriel T's user avatar
0 votes
1 answer
119 views

Is it worth learning Mathematica if I want to choose my career in Cloud Computing? [closed]

currently doing my Masters in Computer Engineering. Is it worth learning Mathematica as I am thinking of pursuing my career in the field of Cloud Computing?. If yes, I really appreciate any good ...
Sai Polakam's user avatar
0 votes
2 answers
71 views

Table generation with random variates inside. Mathematica [closed]

I'm new on this forum, and I'm also a new user of the software Mathematica. For this reason, I'm sorry if my question will be unclear and / or dumb. I have to make a numerical simulation with random ...
Gabriel T's user avatar
0 votes
0 answers
29 views

How to export raw data into a text file as columns?

I have used NDSolve to find the solution of sixteen coupled first order differential equations. It takes a lot of time to process, and I want to import this data into python for plots.
Syed Shahmir Kazmi's user avatar
-2 votes
2 answers
148 views

How do I create cobweb iterations or stair steps **WITH ARROWS** to show attractive and repulsive fixed points for a graph? [closed]

I'm new to Mathematica, so I would appreciate any help. How do I create cobweb iterations or stair steps WITH ARROWS to show attractive and repulsive fixed points for this graph? I want it to look ...
boii's user avatar
  • 43
-2 votes
1 answer
112 views

How to plot an iterative function of y(n+1) against y(n) in order to analyze the convergence of real power towers? [closed]

I'm new to mathematica and was wondering how to plot an iterative graph for power towers. If there is a power tower y= x^x^x^x^x^x^... we can rewrite it as an iterative equation in the following way: ...
boii's user avatar
  • 43
1 vote
1 answer
107 views

Create Matrix with both matrices on the diagonal AND the upper diagonal? [duplicate]

I do know how to do this for matrices on the diagonal, but I can't figure out how to do this for matrices on both the diagonal and the upper diagonal. Can someone help me?
Bert's user avatar
  • 11
-1 votes
1 answer
77 views

How to extract f from given data data in mathematica

How to get all f separately in a table in mathematica T={{{a=0.3,b=2,c=5,f=5}},{{a=0.6,b=0.2,c=1.5,f=0.33}},{{a=0.13,b=2,c=7,f=11}}}
Pulakesh Borah's user avatar
0 votes
1 answer
91 views

Plotting histogram from a list of bin boundaries and counts [closed]

If I use HistogramList (in mathematica) to create list of bin boundaries and bin counts from my data, can I use this list to plot histogram? I want to add the counts from various datasets before ...
SG_00's user avatar
  • 57
1 vote
1 answer
215 views

Mathematica Online & WolframAlpha Notebook Edition

My college provides a site license to Mathematica, including access to Mathematica Online. I daily use a notebook I created long ago, and it always works as expected. I just opened a new file, and ...
GregH's user avatar
  • 1,817
1 vote
1 answer
61 views

Volume of List3DPlot with no function for ImplicitRegion

I have simulated a 3D plot for the crater created using laser ablation. This was created using an imported excel file into mathematical. I have tried studying ImplicitRegion. However, it requires a ...
Joy Kristelle De Mata's user avatar
1 vote
2 answers
270 views

Calculating Matrix Derivatives

I'm sorry if this is an easy question, but I'm trying to refresh my memory on calculating derivatives of matrix products and have been reading the Matrix Cookbook. I'd like to rebuild my intuition by ...
HonestMath's user avatar
1 vote
2 answers
180 views

Solving equation by mathematica and Finding value of b in an equation

I have an equation and I have tried solving it to find values of b but it doesn't give me any values The equation that I have tried to solve is : ...
A.J.H's user avatar
  • 81
5 votes
1 answer
171 views

How to install NCAlgebra to Mathematica Online

New Mathematica user, attempting to install NCAlgebra to Mathematica Online. Following instructions from https://github.com/NCAlgebra/NC/blob/master/README.md , I first tried: ...
Jeremy's user avatar
  • 51
-2 votes
1 answer
68 views

How to convert traditional form of piecewise output into input piecewise function? [closed]

I have an output in this form. Let's say the f[s_,t_]:=output; When I try to calculate points at s, t e.g f[0.1,0.1], the output is still the same instead of any point. but if I convert this output ...
Muhammad's user avatar
-1 votes
1 answer
99 views

I have a (4,4,4) dimensional array which are the distribution values. The x, y and z axis range are given. Can you plot 3d heatmap?

...
K.Tamang's user avatar
1 vote
1 answer
169 views

Accessing directories and files Mathematica Online

How does one access folders of Mathematica Online for Import-ing and Export-ing? For instance, suppose I have created a folder ...
GregH's user avatar
  • 1,817
2 votes
0 answers
36 views

Editing stylized output on Mathematica Online

Suppose the output of Mathematica involves a square-root, such as shown in the image below, taken from Mathematica Online. If one copies the output and pastes into a new input cell, the content ...
GregH's user avatar
  • 1,817
-1 votes
1 answer
128 views

Integral $\int_{-\infty}^{+\infty}\frac{e^{-(x-\eta)^2}}{1+e^{x}}\,dx$ step-by-step solution

I am trying to solve the integral $$\int_{-\infty}^{+\infty}\frac{e^{-(x-\eta)^2}}{1+e^{x}}\,dx,$$ for $\eta \in R$. For example if $\eta=1$, the site gives that the integral equals 0.51, but I don't ...
Anastasia's user avatar
-1 votes
1 answer
105 views

Please help me insert this example into Mathematica to illustrate the transformation

Please help me insert this example into Mathematica to illustrate the transformation
misoon's user avatar
  • 3