0
votes
0answers
19 views

Evaluates fine but blank printing/pdf?

Hey guys I've got a document that evaluates fine but when I go to print preview/print/convert to pdf the result is a single blank page. Any thoughts as to how this occurs?
3
votes
2answers
152 views

Is it possible to assign numbers generated in an Error-Message?

If I have a differential equation of the form ...
1
vote
1answer
58 views

Antialiasing points on a line?

I'm probably being stupid here, but I can't get my points to go in a smooth line: At this scale they should all equally cover the red line. I must be doing something wrong, anyhow I tried to use ...
4
votes
2answers
52 views

How to make height of PlotLegend the same as height of plot which has a fixed horizontal width

This is a problem of Legends in density plot. As pointed out by this post. Generally we want to same height of legend bar and plot. The code for the basic case is ...
0
votes
0answers
38 views

Stop front-end from auto-scrolling notebook to show output

I have made a simple "percent complete" output to track my For loop, where I incrementally print values and then delete the output right before printing the next ...
0
votes
0answers
36 views
2
votes
1answer
74 views

Solving for five unknowns in a 3 x 3 matrix

I know that matrix.Transpose[matrix] = IdentityMatrix[3] matrix = {{0.8111, 0.4867, -0.3244}, {a,b,0}, {c,d,e}} I tried ...
8
votes
1answer
111 views

Integrate and NIntegrate disagreeing over branch cut of Sqrt?

Bug introduced after v8.0.4 and before v9.0.1, and persisting through v10.4.1. In Mathematica 10.2 I'm trying to integrate this piecewise continuous function, but ...
1
vote
2answers
41 views

Plotting points using adjacency matrix

Given an adjacency matrix on n vertices and a polygon on n vertices, how to add edges from adjacency matrix on the Polygon? eg: if polygon is {(0,0),(0,1),(1,0),(1,1)} and the adjacency matrix has 1 ...
-1
votes
0answers
20 views

how to choose from M a point which will be the center of the circle, and in that circle must be a minimum of points [on hold]

C programming on a plane are given a set of points M. Choose from M a point which will be the center of the circle, and in that circle must be a minimum of points
4
votes
1answer
71 views

Argument attributes for pure functions

In his book, Leonid Shifrin says: One important limitation of the # - & notation for the pure functions is that it is ...
0
votes
0answers
18 views

Text interface + scripts: How to use all available cores

For example, the remote host I'm working on has 12 cores: ...
0
votes
1answer
49 views

Solving and Plotting Infinite sums over solutions to transcendental equation involving Bessel functions

I am trying to use Mathematica to plot the following equation $E(q,\Delta)$ vs $qa$, for set values of $ D \Delta/a^2$ and $\bar\rho a/D$. I have looked at other stackexchange posts which deal with ...
7
votes
1answer
78 views

ArrayPlot with a user-defined color function is misbehaving

I am using ArrayPlot to show some arrays with values from 0 to 1. I want 0 to be black and 1 to be white, so I am using: ...
2
votes
0answers
48 views

How to understand the LocalClusteringCoefficient use in directed graph? [duplicate]

When this function use in undirected graphs,its action is normally and can be explained by this formula $$CC_v=\frac{n}{C_{k}^{2}}=\frac{2n}{k(k-1)}$$ n is adjacent nodes of $v$'s number of ...
0
votes
1answer
27 views

Troubles with showing axis after saving in EPS

I'm trying to save a picture in EPS and then to put it into my LaTeX document. But when I put it the left axis is not shown. How do I fix it? (look at the screens) If I save the image in JPG, ...
0
votes
0answers
17 views

Subtle behavior differences of DialogNotebook and PaletteNotebook when using FileNameSetter

Consider code snippet 1 which displays desired behavior: ...
3
votes
2answers
107 views

Visibility Graph of Polygon

Could anyone provide a function that takes a polygon as input and outputs its visibility graph ? Visibility Graph If not, is there a function that checks whether a line segment lies inside a polygon? ...
4
votes
3answers
125 views

Extracting *firstly roots* from some lists to plot their pairs values

I have two different lists as list1 and list2. Their ListPlot3D of them are: and As shown in these plots, there are some points of which ...
0
votes
1answer
58 views

Stopping NDSolve when encountering stiffness

I am solving a differential equation for different initial conditions using ParametricNDSolveValue. I need to look at the value of the solution at some later point, ...
0
votes
1answer
61 views

Extracting the data of each frame from an AVI file

What's the most straightforward way to "Import" the data of an AVI video? For instance, if I record a 30 frame per second video, then after 10 seconds I would have 300 frames. How can I import the ...
0
votes
1answer
35 views

Replace argument of delayed function before it evaluates [duplicate]

How should I use replace so that f[x_] := x^2 Replace[f[3], 3 -> 1] OUT = 9 evaluates to 1, instead of 9? This way, the replacement of the argument is done ...
5
votes
2answers
129 views

How-to ensure consistent legend when using PieChart?

Description: I would like to enforce consistent legend and style throughout dynamic PieChart evaluation. Problem: Based on current implementation, the color ...
-3
votes
0answers
34 views

An error in Do Loop [on hold]

I previously asked a question a bout how to make Do Loop with if condition in this post: Do loop with If condition Actually I applied the answer of @JasonB by using Reap and Sow on a function in ...
0
votes
0answers
28 views

How does one use InputField in CDF Player? [on hold]

The Wolfram website says "InputField[x, Number] works normally in CDF Player, Player Pro, and Mathematica." So I made a CDF with this code: InputField[x, Number] When I try to run this in CDF ...
0
votes
1answer
27 views

Probems using 2 For and a AppendTo to cycle through my Equation to solve some matrixes

I am trying to solve a few problems here. I have an equation with multiple variables that I am trying to solve in For loop method. I will attach the file below. In addition I am trying to get it to ...
1
vote
2answers
83 views

Add marks in multiple functions in Plot

I am looking for any options to draw 2D plot of differently marked curves for given functions, thus one can distinguish it by the provided legend. For instance: ...
1
vote
0answers
31 views

Speeding up solving nonlinear Schroedinger equation in 3D with NDSolve with periodic boundary conditions

I have a question on speeding up solving nonlinear Schroedinger equation in 3D with NDSolve with periodic boundary conditions. I build the ODE system with NDSolve...
1
vote
1answer
37 views

nonatomic expression expected when trying to sum of the integrals of two functions

newbie to MMA. After computing the following two integrals: ...
0
votes
0answers
79 views

Error - Differential equation //2

This is a follow-up question, since it relates to the solution of a modified version of the original differential equation discussed here: Differential equation: NDSolve::berr I receive an error ...
0
votes
0answers
88 views

ListContourPlot cannot plot enormous datafile [on hold]

I would like to create a ListContourPlot from a list with about $7,000,000$ triplets (x,y,z) using the following code: ...
-3
votes
1answer
68 views

How can I fix my code? [on hold]

I am running this following code in Mathematica. It shows some error message. I have no problem with it. But it does not show the output for $m=1/2$. It shows me the output when $m=1$ and $m=2$. How ...
5
votes
2answers
67 views

How to generate grid points on boundary of $[-1,1]^d$ for arbitrary dimension $d$ and specified resolution?

This must be a trivial thing but I was not able to find a function for it in Mathematica. How do you efficiently create a grid with constant but specific resolution $r$ in all directions on the ...
0
votes
0answers
28 views

Make a table OF matrices [on hold]

I have a number of matrices that are outputted and it would be very useful to be able to compare them in a table. Firstly, this is the first part of the code needed ...
0
votes
1answer
75 views

What would be the Mathematica equivalent of sparse in MATLAB?

The sparse function in MATLAB does the following: S = sparse(i,j,v) generates a sparse matrix S from the triplets i, j, and v such that S(i(k),j(k)) = v(k). The ...
0
votes
0answers
28 views

A simple question on recuperation of a result [closed]

It's perhaps an already ask question and perhpas it is stupid, but I do not know how to search for it. If sol = Solve[a x^2 + b x + c == 0, x] when calling ...
-3
votes
1answer
70 views

Animate Spring Pendelum

Is there ANYBODY who can solve this exercise??? Visualize the oscillation of a spring pendulum . Write to a function ( modules ) "spring mass" [ eg , nzigzag ] , which visualizes the spring ( Line ) ...
1
vote
0answers
57 views

Differential equation: NDSolve::berr

I'm trying to solve the following differential equation. I'm able to obtain a solution, and that solution looks more or less as how the theory predict it should be. ...
1
vote
2answers
42 views

Logarithmic scale in an ParametricPlot obtained from ODE boundary conditions

How do I plot an ParametricPlot with the x-axis using an logarithmic scale? Since I need to use an ParametricPlot, I can not use the LogLinPlot[] and I also was not able to find any viable Solution in ...
-3
votes
0answers
48 views

Can I use function to generate List from another? [on hold]

Suppose we got a 3 dimensional List M(x,y,z),xyz indicates the dimension number. Can I get a new List use just function like NewList=M(x,y,z+1)/M(x,y-1,z)? M here would like {{{a[1, 1, 1], a[1, 1, ...
-2
votes
0answers
56 views

How can I write the coding in mathematica based on time? [on hold]

Hi, I need some help for my problems. May anyone help me in coding I want to make For loop based on time for this matrix. I want to change to look the changes of alpha3 when increasing of time with ...
1
vote
0answers
31 views

How do I prevent Root and RootSum from expanding over quadratic roots?

For quadratics, RootSum[a #^2 + b # + c &, Cos[#] &] Immediately turns into and also, ...
0
votes
0answers
34 views

How to replace Real part o f a complex number [closed]

I want to replace the real part of a list of complex numbers by zero. I try these two solutions but it does not works ...
1
vote
1answer
101 views

Image Filtering in the frequency domain

Here is a good starting to fiter image in the frequency domain lena = ColorSeparate[ImageResize[ExampleData[{"TestImage", "Lena"}],{121,121}]][[1]]; (Create a ...
0
votes
1answer
46 views

Contour plot with a condition

I have a simple contour plot and wanted to find solutions only when both x and y are integers. The following code doesn't seem to work. ...
0
votes
0answers
42 views

Get asymptotic form of a Legendre function expression [on hold]

How to get the asymptotic expression of the first element of the following list with small x and very large n? ...
0
votes
0answers
36 views

Time series decomposition using wavelet transform [on hold]

I have a monthly time series data. I want to perform a non-decimated discrete wavelet transform to decompose the time series into its different time scale components (level 6). Is there a way of doing ...
0
votes
0answers
16 views

build absolute value equations know solution [migrated]

We have absolute value equations with unknown coefficients: |x + a| = b and we know solutions: x = 11 and x = 5 We need ...
0
votes
0answers
41 views

A function that takes in an array and returns an array (or lists) [on hold]

So I have function f[x_] := c.x - Total[Log[b - A.x]] where the variables have dimension c is 1x100, b is 500x1, A is 500x100, and x is 100x1. My goal is to get the ...
-2
votes
0answers
24 views

Graph coloring - edges - algorithm tweak [closed]

I was kind of heedless and read wrong assignment task. I wrote an algorithm that finds the minimum numbers of colors in graph for vertices. And when I finished it, not i read the assignment task ...

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