Mathematica

Mathematica

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## Enable Frames for All 2D Plots in Mathematica

To set all the 2D plots to have the option Frame->True, i added the following to my "init.m": (SetOptions[#, Frame -> True]&)/@{Plot,ListPlot,ListLinePlot,LogPlot,LogLogPlot,LogLinearPlot}; ...

## Extract information from HTML using Mathematica

Is there an easy way to extract data from specific HTML tables using Mathematica? Import seems to be pretty powerful, and Mathematica appears to be capable of handling formats such as XML pretty ...

6 answers | 18 hours ago by Pickett on stackoverflow.com

## Telling Plot to style vector-valued black-box functions in Mathematica

Suppose I write a black-box functions, which evaluates an expensive complex valued function numerically, and then returns real and imaginary part. fun[x_?InexactNumberQ] := Module[{f = Sin[x]}, ...

3 answers | 18 hours ago by Sasha on stackoverflow.com

## How can I run Normal Boundary Intersection (NBI) method with matlab or any other software?

I have a constraint optimization problem. I want to convert it to a multi-objective mathematical programming problem (so-called Multi-objective optimization , vector optimization). I need to run ...

## A numerical evaluation of $\sum_{n=1}^{\infty}(-1)^{\frac{n(n+1)}{2}}\frac1{n!}\int_0^1(x)_n dx$

I would like to obtain a numerical evaluation of the series $$S=\sum_{n=1}^{\infty}(-1)^{\frac{n(n+1)}{2}}\frac1{n!}\int_0^1x(x+1)\cdots(x+n-1) dx$$ to five significant digits. I've used Mathematica, ...

## Fill upper triangular matrix from a list

I am looking a good way to fill up the elements of a lower triangular matrix from a list. I currently have this: PadRight[#, s] & /@ Prepend[Take[elems, # + {1, 0}] & /@ ...

## Getting a part of a matrix in mathematica

I was trying to get an element of a matrix, and use in further computation of my program. Problem was that its not reading the value unless and until I specify it again. My code is: In[1]:= G = k1 ...

## Multiplying constant to an expression

I am multiplying constant to an expression which can be seen from below. But the final expression is getting reduced. I just want it to be multiplied. (x^2 (-((1. (2 - 1/x)^3 x^5)/( Sqrt[1 - x^2] (0. ...

1 answers | Jan 25 at 12:10 by Chikorita Rai on stackoverflow.com

## How to output periodogram result to a list in Mathematica?

I have a time domain data. After I did discrete fourier transform with Periodogram, how can I output the plot into a list for further manipulation? Periodogram[data[[All, 2]], SampleRate -> ...

2 answers | Jan 25 at 11:44 by Ruochen LU on stackoverflow.com

## Wolfram Language -change its cloud dependency, to a local dependency, without affecting its other features

Is there any way Wolfram Language is used against virtual data (no real data.), provided a database (as in a complex game, with specified analysis required). I really like how this language. How can ...

## Solving a system of 36 equations and 24 variables in Mathematica

I want to solve the following system of equations, but when I use Solve or NRoots my machine seems does not response. Are there any ideas to help? Can you run the code on your machine and give me the ...

## How to plot magnetic field lines in mathematica?

I am preparing for the exams, and I have spent couple of days trying to solve the task, but without success. Can someone show me how I solve this? The result should look like this:

## How can I simulate repulsion between multiple point charges (ball bearings) in Mathematica?

I'm trying to write a program in Mathematica that will simulate the way charged ball bearings spread out when they are charged with like charges (they repel each other). My program so far keeps the ...

## How to create a network graph based on a weighted matrix

I want to create a network graph (similar to g = ExampleData[{"NetworkGraph", "ZacharyKarateClub"}];). However, I want the graph to be based on shared interests rather than connections. I.e. Bob, ...

## Nested if conditional in Mathematica

Do you know if and how I can rewrite the code below in a better form for different values of m, k, and l? It is a nested if conditional construct that I want to check b for all m, k, and l, but the ...

## every calculation must be done twice to get an answer

Would really appreciate if someone can help with this problem: When I first open a Mathematica note book, say you do 1+2 and press shift-enter. As expected, I get "3" as the output. Now suppose you ...

## Point of intersection between two lines, Wolfram Mathematica

There are two pairs of points given by the coordinates. I have to create two lines out of those pairs of points, and to calculate the point of intersection of those lines. This can be instance of how ...

1 answers | Jan 22 at 21:48 by wdc on stackoverflow.com

## How to solve Euler Project Prblem 303 faster?

The problem is: For a positive integer n, define f(n) as the least positive multiple of n that, written in base 10, uses only digits ≤ 2. Thus f(2)=2, f(3)=12, f(7)=21, f(42)=210, ...

## Project Euler # 23 Mathematica

I am solving Problem 23 of Project Euler using Mathematica: Find the sum of all positive integers that cannot be written as the sum of two abundant numbers. Recall that an abundant number # is ...

1 answers | Jan 22 at 18:06 by Josué on stackoverflow.com

## Fanciest way to include Mathematica code in LaTeX

I am trying to include a Mathematica code in LaTeX. To obtain the Mathematica code I just exported notebook as PDF. I didn't like the way it was included in my TEX code so I just thought of adding a ...

3 answers | Jan 19 at 21:00 by Thanos on tex.stackexchange.com

## Mathematica: Integration of Bessel Function & Exponent Function & Trigonometric Function

I have an integral with the form Int[k_]:=Integrate[Exp[-x]xSin[x]BesselJ[0,k*x],{x,0,10}] where BesselJ[0,kr] is the modified Bessel function of the first kind. Now i can't get the directly ...

We have built a webMathematica website using apache tomcat servlet. The webapp worked fine for some time, but since the last month we are getting errors while uploading files of size more than 8 kb. I ...

## How can I fix a poor nonlinear curve fit?

I was trying calculating Fourier transform of some rings. as follow: By directly calculating of model as several rings, the result showed different from the the experimental ones. So I tried to ...

## Not Fitting well exponent BY Mathematica

I was trying NonLinearModelFit by mathematica.. The data should include something as Exp[-ax]Sin[bx]......But I can't get the proper fitting curve(parameter).. Original programs were listed below.. ...

## Installing Mathematica Fonts in MikTeX

I would like to use Mathematica fonts with pdfLaTex in Miktex, but I'm having trouble installing them. I have only found guides as to how to install them in TexLive and I don't know how to alter the ...

## Mathematica is able to compute an indefinite integral but not the corresponding definite one

I'm trying to compute the following definite integral in Mathematica: Integrate[Sqrt[3]/Sqrt[1 + Sqrt[1 + 12*u^2 - 24*\[Mu]]], {u, -Sqrt[1 + 8*\[Mu]]/2, Sqrt[1 + 8*\[Mu]]/2}] Only for some ...

## Inverse gradient as line integral in Mathematica

I found a nice paper about inverse vector operators here. I have successfully defined a Mathematica function for inverse curl and inverse divergence, however I can't figure out how to do inverse ...

## Summation of an infinite series

For the following series, S= Sum[(e^(a*m*n))*((b^(-m)*(n/2)))),{m,1,infinity}] I get the output: By the geometric series test, the series converges. How to get the actual value of the infinite ...

1 answers | Jan 14 at 4:31 by Chikorita Rai on stackoverflow.com