0
votes
0answers
51 views
3
votes
0answers
33 views

Tracking features where ImageFeatureTrack finds none?

How is it possible to track common features in the following sequence of images (e.g. holes or corner points along the top margin), ? I have had no luck with ...
3
votes
2answers
72 views

How to define UpValues about the derivative of NBSpline when the length of knots is unknown?

Description In the book “Programming in Mathematica” 3rd by Roman.E.Maeder, the author gives a topic about A new Mathematical Function in section 8.4. For instance, for the following formula: ...
3
votes
0answers
54 views

Exported CDF file does not include GeoGraphics [duplicate]

I'm trying to display a map on manipulate and the case is .nb files shows it but when I export it to .cdf this format not show the GeoGraphics map ...
2
votes
1answer
45 views

How to extract part of association?

Considering an association: asc = <|"a"->1, "b"->2, "c"-><|"e"->3, "c"->4|>, "d"->5, "e"->6, "f"-><|"g"->7|>|> How ...
5
votes
0answers
44 views

A book or tutorial/guide for “Systems Interfaces & Deployment”

I'm looking for a complete guide (call it a book, tutorial, guide or whatever) about some programming topics which are not enough covered by Mathematica Documentation Center, in my opinion. Topics ...
4
votes
0answers
52 views

Convert .csv Dataset and store in Databin [on hold]

Trying out the new Databin product in the Wolfram Cloud. I have a simple ,-delimited .csv file with a header row which I have imported using the follwing: ...
23
votes
1answer
2k views

Upgrade to Windows 10

Can users of Mathematica on Windows 7 or Windows 8/8.1 upgrade their computers to Windows 10 – a process that began today? Does Mathematica work? Are all the settings, licenses, access to files and ...
0
votes
0answers
31 views

Interpolating function for data with five independent variables [on hold]

I have to optimize the risk reward of a financial structured product depending on several variables: the tenor (between 12 and 36 months), the type (american, european), the Knock In (KI) ...
0
votes
1answer
66 views

How to disqualify a rule [on hold]

Executing this line Assuming[x < 0, x -> 10] Expected output: False Say x -> 10 is a root of a polynomial ...
-1
votes
0answers
28 views

Another Integration to prove [closed]

We want to prove this integration $\displaystyle\int_{-\infty}^{\infty} \frac{x sin (x)}{1+x^2} = \frac{\pi}{e} $
4
votes
1answer
70 views
0
votes
0answers
7 views

What's the last whole number before a googolplex? [migrated]

"What's the last whole number before a googolplex?" My six yr old asked me this, this evening, how does a math challenged dad answer this?! A googolplex is hard enough as it is to imagine or ...
1
vote
1answer
156 views

How to increase the thickness of the edge in a random image

This is a Voronoi Diagram. I really want to know how to change the thickness of the "wall" of each V-cell, in another words, the thickness of the edge in this diagram.
5
votes
3answers
152 views

List all “duplicate” elements in Tally

Tally[list,test] can use a custom function test to judge if elements are equal. But the output will only give the first element ...
1
vote
0answers
33 views

RegionPlot generates unwanted mesh lines [duplicate]

Consider this example: ...
0
votes
0answers
32 views

How to find roots of a bi-quadratic equation having symbolic coefficients? [closed]

I have the following equation with the symbolic coefficients specified using syms which I have been trying to solve in MATLAB ...
4
votes
2answers
62 views

Usage of StringTemplate

The documentation for StringTemplate has the following example ...
0
votes
1answer
58 views

Plot a circle and create a 3-D revolution plot out of it

If I have the equation (x-2)^2 + (y-2)^2 == 1 I can use a ContourPlot, however am having trouble changing the axes origin. I ...
5
votes
3answers
92 views

ImplicitRegion gives arbitrary boundaries

This question uses Mathematica 10.2.0.0. equation1 is the major unbounded region I would like to generate: ...
5
votes
1answer
95 views
2
votes
1answer
45 views

Confusion over blank sequence in pattern matching

My overall goal was to produce a list of heads used in a graphics output. For an example I used: ...
6
votes
2answers
252 views

How to achieve a decent terminator line?

What I did: ...
0
votes
0answers
26 views

How to use function, NIntegrate, FindRoot together? [duplicate]

Using a function in NIntegrate works fine... ...
3
votes
2answers
125 views
7
votes
1answer
71 views

Prevent 10.2 from creating “Wolfram Mathematica” directory on Linux

Since upgrading to version 10.2.0.0, every time I start the Mathematica front-end it creates a "Wolfram Mathematica" directory under my home directory. (It never seems to put anything in it.) Anybody ...
0
votes
1answer
92 views
2
votes
0answers
31 views

Fishing for monomials in a nested or partially factored polynomial stream

I have a problem where I'd like to be able to take a multivariate polynomial whose variables are nonscalar and is not written explicitly as a sum of it's nonzero monomial terms and determine which ...
0
votes
2answers
45 views

Function to list Collatz sequence doesn`t work [duplicate]

I am new to Mathematica and was trying to make a function that lists the Collatz sequence stating with a given number, but I can´t get it to work. Here is my function: ...
2
votes
0answers
77 views

Mathematica file transforms to some strange format

I am facing a very annoying problem with mathematica file. Sometimes it is automatically saved in a "pdf like" bizarre format. Each input and output line of the original (.nb) file starts with In[#] ...
2
votes
1answer
107 views

How can I write a loop to get many values from a solution?

I am looking at the value of x[t] at day t = 200 over several years. I tried to do it using a For-loop but it didn't work. This ...
0
votes
0answers
35 views

Binomial decomposition of a list? [closed]

Given a list L with n elements, I would like to generate all possible unordered subsets of ...
2
votes
1answer
80 views

Potential flow over cylinder with FEM: Pressure field is flipped

Much in the fashion of a few problems already answered on Mathematica.SE (1, 2), I am trying to solve the Laplace equation in velocity potential $\phi$ to simulate irrotational, inviscid flow over a ...
19
votes
2answers
323 views

Speeding up the built-in Rudin-Shapiro and Thue-Morse sequence functions

Version 10.2 introduced two well-studied sequences as functions: the (Golay-)Rudin-Shapiro sequence (RudinShapiro[]) and the (Prouhet-)Thue-Morse sequence (...
1
vote
1answer
77 views

How to plot a function defined by an expression containing integrals [duplicate]

It seems Mathematica does not like it when it is given a function defined by an integral to plot. How would one plot a function $F(x)=\int_0^x\int_0^xf(t,s)dtds$ on a given interval? Edit In ...
-1
votes
1answer
55 views

Pulling variable out of NonlinearModelFit [on hold]

I have a fit, Dynamic[f1 = NonlinearModelFit[d1, a Exp[-(b (x - c1))^2] + yoff, {a, b}, x]] Where I need to be able to access ...
-1
votes
0answers
49 views

Evaluate result from NDSolve is slow [on hold]

I am calculating some partial differential equations with NDSolve, it does it well. However when I try to Evaluate the ...
3
votes
2answers
72 views

Find sub-sets of vanishing additions or subtractions from a list?

Let's say I have a list L containing n numerical numbers. Now I want to find all sub-sets of ...
4
votes
1answer
119 views

NMinimize fails on Mesh?

Context I want to identify the minimum of a solution of a PDE found on a mesh. Problem I do not understand why NMinimize fails on a mesh? As a test case, ...
0
votes
1answer
58 views

Multivariate Equation solving [closed]

I have the following equation: r^(1 + Rho) - r^Rho (-1 + Mu) - z Rho == 0 I searched the list but I couldn't come up with a solution. Any help is appreciated. ...
0
votes
1answer
27 views

Store Eigenvalues of a matrix in a list for varying one symbolic variable [closed]

I have a matrix r which has a symbolic variable Rs which varies from 0 to 2. I want to find the eigenvalues using ...
2
votes
2answers
50 views

Import a column of data, make a matrix from it and export it WITHOUT curly braces

I'm new here and with Mathematica, too. I want Mathematica to import data from a txt file (it has one column of data). These entries are z-values. From this I want to make a matrix - 508 entries make ...
4
votes
1answer
31 views

Relative factorisation with scalar quantities

I'd like to find a natural way to tell mathematica that a given unknown in a polynomial should be treated as a number, unlike the other variables. Typically I'd like to sum two polynomials in several ...
3
votes
3answers
71 views

List connectivity of points in discretized mesh

I'm trying to automate the extraction of the points and a compatible connectivity list for meshes created using the DiscretizeRegion or similar method. If I create ...
2
votes
0answers
19 views

How to obtain the value of a single symbol with mathlink

I am trying to write a (C) routine which reads the value (a list) assigned to a single symbol in mathlink. I tried things like ...
0
votes
1answer
110 views

How may I avoid ParametricPlot3D clipping? [duplicate]

What I am doing: ParametricPlot3D[{Cos[z/2]^6 * Cos[t],Cos[z/2]^6 * Sin[t], z}, {t,-Pi, Pi},{z,-Pi,Pi}] What I get: What I want: what I get, but without the ...
2
votes
1answer
96 views

Solve an inequality involving a sum with a parameter

Good day. I am new to Mathematica and I am looking for advice. Is it possible to solve $$\sum_{k=0}^{n} \frac{p^k}{k!}>0$$ for $n$ where $p$ is a parameter? When I do ...
3
votes
2answers
142 views

Generating Meshes with Conforming Boundaries for FEM

I would like to solve a PDE on an annulus with some boundary condition that relates the inner circle to the outer circle. (For example, periodicity along radial lines). If I use a finite element ...
-3
votes
0answers
34 views

Hold and Release an import [closed]

I'm in Manipulate bloc to make a dynamic car selector, but there is a point in which i need to load the car specifications but if I don't hold the import causes an error here is the code ...
0
votes
0answers
46 views

How to deal with Missing[NotFound] [closed]

I'm getting the position in array of pick value, and always obtain Missing[NotFound] until I select something, there are any way to check if variable is a number ...

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