Questions tagged [mathematica-online]

For questions specific to the Wolfram product Mathematica Online.

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2 votes
4 answers
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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
458 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
29 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
107 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
78 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
81 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
73 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
42 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
25 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
31 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
39 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
74 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
88 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
64 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
575 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
62 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
73 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
46 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
94 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
65 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
28 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
0 votes
0 answers
71 views

Caputo-Hadamard fractional derivatine nonlinear equation system

I tried it make it solved and plot but im confused, NDsolve, DSolve, ParametricNDSolve didnt work. Please help me, and please write anything.Thank you. ...
aysen's user avatar
  • 1
-2 votes
2 answers
122 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
101 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
81 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
75 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
73 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
0 votes
0 answers
65 views

How to get a result for some values of parameter H

This is my code. ...
H A's user avatar
  • 1
1 vote
1 answer
184 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
  • 1,755
1 vote
1 answer
58 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
191 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
176 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
147 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
62 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
93 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
123 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
  • 1,755
2 votes
0 answers
34 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
  • 1,755
-1 votes
1 answer
125 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
104 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
1 vote
1 answer
124 views

Correct code for 4th differential equation

How to code and solve the following equation in mathematica. d^2/dx^2(x^2d^2u/dx^2)+b^2u=0
7444_S's user avatar
  • 21
1 vote
1 answer
137 views

2nd order differential equation

Can the given equation be transformed to the Bessel equation?. If yes, how it can be transformed then?. Y''(x)+a*Y'(x)+b^(2)*e^(2ax)Y(x)=0
7444_S's user avatar
  • 21
1 vote
1 answer
113 views

Solution of a BVP by Means of DSolve [closed]

If we consider the BVP $y^{\prime\prime}(t)=\frac{3}{2}y(t)^{2}$ where $0\leq t\leq1$ and $y(0)=4$ and $y(1)=1$. Then its solution is $y(t)=\frac{4}{(1+t)^{2}}$. I have set the BVP above as in ...
Junaid's user avatar
  • 161
1 vote
1 answer
143 views

Mathematica failing to simplify ratio of pi-notation finite products

I'm wondering if the following behaviour could please be explained to me: ...
Dion Bridger's user avatar
-4 votes
2 answers
189 views

Wolfram Mathematica Code please [closed]

Consider two natural numbers of two-digits, like 46 and 96. They have the property that by exchanging the place of their digits and multiplying the so obtained numbers, we get the same product; i.e., <...
victoria lafontaine's user avatar
-2 votes
1 answer
91 views

how to find and b piecewise function mathamatica [closed]

how would i find a,b for how would i write this in Mathematica to get a and b
xzgtrtprmwteaghbai's user avatar
-3 votes
1 answer
53 views

Proof: Ratio of Cauchy distribution [closed]

I have a problem that I have been struggling to prove. Can someone help me with proving this following question, please ? : Thanks
Sophie's user avatar
  • 1
1 vote
0 answers
52 views

How to give constraints of two parameter optimization in Lagrange multiplier?

In the lagrange multiplier method, the equations are : f[x_,y_]:=x^2+y^2 g[x_,y_]:=6x+8y The range of x and y values are 0<=x<=0.9, 0<=y<=10. How can I give the mentioned range of values ...
S.Kirubakaran's user avatar
0 votes
1 answer
39 views

Why won't ChartLabel print the right country under the right bar chart?

I'm working on an assignment and I can't seem to print out the right country name under the right bar chart. What is the problem? Why does the second country only print out? Ignore some of the words (...
Vetenskap's user avatar
  • 199