0
votes
0answers
12 views

Translate C++ in Mathematica 10.0.2

By translating the following program written in C ++ ...
0
votes
2answers
73 views

Convert `FullForm` to XML Structure and back

How might I create a function that converts between FullForm and a XML structuce? Ultimately I'm ideally looking to use CSS and JS to edited the XML structure. ...
5
votes
2answers
560 views

Generating random symmetric matrix

Suppose first that I want to generate a matrix whose elements are independent and identically distributed (i.i.d.) with distribution dist. This is easy: ...
0
votes
0answers
22 views

How do I remove roads from Mathematica maps?

I'm using GeoGraphics and Polygon[Interpreter["USState"]["Colorado"]] to create a map of Colorado and several bordering states. ...
2
votes
0answers
20 views

How would one return from a place of a pure function's body using Return?

From previous answers, replies and discussions it is known, while not formally documented (even in the most recent Wolfram Language Documentation Center), that Return can be used in a two-argument ...
0
votes
0answers
26 views

Replace x_Integer Rational Atomic

It's isn't a big deal but if you run the following you don't get the expect output IMO ...
0
votes
0answers
10 views

Problem of FileEncoding of the output file of FileTemplateApply

Problem of FileTemplateApply FileTemplateApply will change a file-encoding[UTF8] into a file-encoding[WindowsANSI], it seems it doen't accept CharacterEncoding ...
3
votes
3answers
203 views

Looping through 3 million elements of a list to 'Set' values is slow

I am looping through the 3 million elements of a time-series (v1, o1) and corresponding values (v2, o2). v1 contains a uniformly increasing timestamp (e.g. 1 to 3,000,000 in increments of 1) o1 ...
0
votes
0answers
11 views

Can Mathematica Deploy a Dynamic-3D-Tag-Cloud in one webpage

Recently I've used mathemtica WordCloud function to generate a tag picture here And there is also a JS-Version 3D-tag-Sphere below[not so good] My Question is: ...
0
votes
1answer
46 views

string manipulate with “\”

I'm trying to code that makes download files from some pages. What I am using built-in function is Import, and stringreplace. I found that when I import url there is blank and I need to replace them ...
-3
votes
1answer
87 views
5
votes
2answers
105 views

FunctionInterpolation and Which combine badly

Update 2: Got two solid answers, but had trouble implementing one, and found the other could only save me computation time by sacrificing accuracy. So I chose neither as an official answer, but ...
2
votes
0answers
23 views

Unexpected behavior from Return called in a Block [duplicate]

I like to write functions that dispose of failure cases early, before they do the main calculation, but I don't like to write cascading If statements. Here is a toy ...
0
votes
0answers
59 views

Solve an integral equation: to fit the given data with an integral of two functions?

I am trying to find an efficient way to solve the following equation $$h\left(b\right)=\int_{0}^{b}f\left(\frac{b-c}{1-c}\right)\frac{g\left(c\right)}{1-c}dc$$ where for $h(b)$ I have the data ...
3
votes
2answers
64 views

How to prevent ExportString from reencoding diacritics when exporting as JSON

I'm not sure if it's a bug with Mathematica or if I'm missing something, but when trying to ExportString a UTF-8 string with diacritics as JSON, it's messing up the ...
10
votes
1answer
453 views

Mathematica 10.0.x freezes in Initializing kernels

I updated to Windows 10 and have been running Mathematica fine on it for over a month. For some reason, it has just stopped working. I don't remember any Windows updates occurring which would have ...
8
votes
2answers
702 views

Front end freezes on start-up

Update 2015 September 4: An incorrect paclet update was pushed recently that caused Mathematica to not hang on startup with "Initializing kernels". The problem and solution are described here: ...
0
votes
1answer
39 views

Remember Plotting Command

I used a command in another computer to obtain a surface without using any input more than the command. It returns me a surface like this: Anyone knows the command or commands that let me graph ...
3
votes
2answers
48 views

Calculate the mean of ordered distribution of the defined distribution

15I am trying to evaluate the mean of the following: Let $a\sim Binom(10,1/2)$, consider the random variable $$d=\left|\frac{2}{\sqrt{10}}a-\sqrt{10}\right|$$ Let $d_1,\dots,d_{20}$ be i.i.d copies of ...
4
votes
2answers
61 views

How to load a file in a directory inside the current working directory

How can I use something like that NotebookEvaluate[ "Mathematica\\SomeFile.nb"]; Instead of ...
0
votes
1answer
35 views

Mathematica Wont Open [duplicate]

Mathematica 10 will not open on my computer which runs Windows 8. It is stuck on the initializing kernals screen regardless of whether I try to open the program or open an old document. The problem ...
2
votes
1answer
69 views

Newton's Method Glitch

I wonder if you can help me with my program - it involves using Newton's Method but my main issue is getting a defined function to return a given value. Essentially, I want to get my function ...
0
votes
1answer
71 views

How to determine the parameter in a differential equation with some fixed solution

Assuming that I have a ODE system with undetermined parameter $$x''(t) == y(t) x(t)$$ $$y'(t) == 2 - a x(t)$$ and I have some fixed solution condition $$x(0)=0$$ $$x(10)=8$$ $$y(10)=3.5$$ Is there ...
4
votes
0answers
51 views

Multiple Constrained Sum

I need to perform a multiple summation, that obeys some conditions. This arises in the study of a statistical physics model. q=Exp[-β]. I would like to ask if ...
1
vote
1answer
55 views

Is there a hidden location-type property for TropicalStormData?

TropicalStormData gives you time-series data on tropical storms. In the property list there is not a location (geographic coordinates) property listed. There are ...
6
votes
4answers
106 views

Superimposing ListContourPlots on each other

I have two ListContorPlots that I would like to plot on top of each other for easy visualization. I tried using Overlay for ...
4
votes
3answers
61 views

How to center a graphic in its output cell

Say I have produced a single graphic ouput, perhaps a plot. Instead of displaying left-aligned in the notebook, I would like it to display in the center of the output cell. I would like it to stay ...
1
vote
0answers
54 views

Restrict range of Functions

I have a function f[x,y,...,z] and I want to restrict its range to positive numbers only, f>0. f[x,y,...,z] is multivalued for some x,y,...,z and I cannot plot it for these values. How can I restrict ...
0
votes
0answers
33 views

Solving a system of non-linear equations / approximate or exact solution — either takes ages or gives non-sense

I would like to find all solutions in terms of functions F and g of the following equation $h(x)=\int_0^x F(x-y)g(y) dy$ Normally $h(.)$, $F(.)$ and $g(.)$ are continuous. But I have a numerical ...
2
votes
2answers
45 views

Implementing BinCounts for alphabetical structures

Is it possible to implement BinCounts for alphabets such that those alphabets which fall into the group {a,b,c,d} can be counted ...
9
votes
2answers
436 views

Sierpinski carpet with GraphData

Is this graph in the list among the so-called "standard" structures used in GraphData? However, I have not found, yet, anything like "Carpet" or "Sponge" in the ...
-3
votes
0answers
48 views

how to write a fortran subroutine in Mathematica and then how to call it in main body of program [on hold]

I want to convert the same subroutine in Mathematica and then want to call it in main body. Please guide
1
vote
2answers
34 views

Creating a Table with a list of If statements given in a certain order

I am trying to create a conditional Table with If statements, where I move to the next condition only if the first one is satisfied, otherwise I "Break[]" and move to the next element of the table. ...
-2
votes
0answers
32 views

Visualsinig the system of linear equation using r program [on hold]

I need the graph of the following equation in 3d x+y+z=1;x+y+z=2;x+y+z=3 how do I get the clear visualization using r programming
3
votes
0answers
24 views

NotebookAutoSave -> True “partially” working?

I am a novice to Mathematica (using v10.2) and was wondering why: SetOptions[SelectedNotebook[], NotebookAutoSave -> True] does not switch on ...
3
votes
0answers
34 views

Using NIntegrate and DiscretePlot to visualize pseudodifferential operators

In harmonic analysis, pseudodifferential operators are a way to generalize the notions of derivatives, through the use of Fourier transforms. The basic idea being, Let ...
1
vote
1answer
48 views

Map inside LogLinearPlot with legends and different colors [on hold]

I have been trying to use Plot with a nested map to make plots of a numerically integrated function with different argument parameters, and after some searching I have finally got that sorted. My MWE ...
1
vote
1answer
42 views

Plotting multiple instances of a function defined with NIntegrate

I have a function that involves an NIntegrate, for example something like this: f[x_, z_] := NIntegrate[z*x*y^2, {y, 0, x}]; I want to plot this function for a ...
2
votes
1answer
53 views

Format tabular data with a certain row highlighted

I have tried a method to highlight certain rows in various tableform. An example: ...
3
votes
2answers
63 views

Interactive ListPlot by mouse clicking

Say I have a list of 2-tuples that is visualized by ListPlot. Each 2-tuple is also associated with another graph. Now what I want to realize is to display the ...
5
votes
1answer
253 views

I change a single constant and the simple script suddenly takes forever to complete

I writed a code to display the Dragon Curve fractal, and I reached my goal. The algorithm works by taking the previous two points and then adding the following one by making a 90 degrees turn left or ...
1
vote
2answers
39 views

How would one set up a conditional to evaluate at the last output value (wondrous numbers) [duplicate]

I know this is pretty fundamental, but I'm trying to learn Mathematica on my own and this is stumping me. I know 5 is wondrous and it takes 5 steps to reach one, but I can't figure out the input to ...
2
votes
1answer
63 views

Plotting a partial sum

I am given the Legendre expansion of the first kind. $$f(x)=\sum_{n=0}^{\infty}A_{n}P_{n}(x).$$ I have worked the coefficient to be $$A_{n}=\frac{1}{\left \| P_{n}(x) \right \|^{2}} ...
0
votes
0answers
62 views

Plotting PV isotherms followig the Redlich Kwong equation of state [on hold]

I am attempting to plot the $PV$ isotherms for 1 mole of neon from 4-1000K assuming the equations of state Redlich Kwong. I do get a graph but it looks more like the graph for ideal gas instead of ...
0
votes
0answers
23 views

Solving a consistent overdetermined linear system

Not a duplicate question. I already tried all the Answers offered for this Question and they failed, so I believe this is a different problem with Solve[]. I have a solveable, consistent system of ...
2
votes
2answers
94 views

How do I exclude regions from numeric integration on Mathematica?

The part of the equation that is giving me trouble is below: f[t_,v_]:= Exp[-(1/Log[1-t/v]^2)]*(v-t) I need to integrate this function over the ranges .1 ...
0
votes
2answers
86 views

After NumberForm I cannot apply a Sine function. Why? [duplicate]

After NumberForm I cannot apply a Sine function. Why? This works: sol1 = x /. Solve[x^2 - 3 == 0, x] Sin[sol1] Output = $\{-Sin[\sqrt{3}],Sin[\sqrt{3}]\}$ Also ...
3
votes
1answer
85 views

Calculate sum of probabilities in multinomial model

The question at hand: On average in every 7th chocoloate egg there is a figure to be drawn from a known list of special figures (e.g 15 distinct pieces) the other draws are on average fails. With ...
0
votes
0answers
22 views

How to solve PDE in 2D region with mixed boundary condition?

I'm trying to solve the inhomogeneous wave equation with mixed boundary conditions. How do I input these conditions? Is is still with NDSolve?

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