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Questions tagged [system]

Questions on implementation details and how the parts of Mathematica are arranged or configured to work. Avoid this tag for issues that are confined to a specific operating system.

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Get All Discrete Univariate Distributions with Symbolic Parameters

I am trying to get all Discrete Univariate Distributions with symbolic arguments from any place in Wolfram Language system. For example this guide: http://reference.wolfram.com/language/guide/...
Vitaliy Kaurov's user avatar
5 votes
1 answer
169 views

Validate `Box` grammar, is it possible?

Is it possible to validate grammar related to Box formed expression (RowBox, FractionBox, ......
imida k's user avatar
  • 3,807
1 vote
0 answers
61 views

What is the orange color symbol in the new line? [duplicate]

In mathematica v 13.1 , If I type + key of my keyboard in a new cell, I see What is it? Also if I type + twice in a new cell, ...
imida k's user avatar
  • 3,807
4 votes
1 answer
97 views

Notebook magnification - two independent values

It seems there are two independent, equally influential values those control mathematica notebook magnification. Just like volume bars in a certain media player(program) and volume bar in tray bar(...
imida k's user avatar
  • 3,807
3 votes
1 answer
80 views

Parallel computing doesn't use my own settings

To differentiate the conjugate of a function, I used such settings. ...
rpark's user avatar
  • 51
1 vote
1 answer
67 views

Use output of Solve as input of another instance of Solve. How to deal with list of rules

I am a complete novice with Mathematica. The last line of the code that I report is a system of equations I'd like to solve (and I am sure it admits a unique solution): (I don't know how I can convert ...
Matteo Bulgarelli's user avatar
5 votes
0 answers
60 views

Why does Length[Names["System`*"]] give different values on Windows and Linux?

I was just curious about this. Length[Names["System`*"]] Gives slightly different value on Linux and Windows 10. I was wondering why that is as I have ...
Nasser's user avatar
  • 130k
6 votes
1 answer
215 views

Documentation Search : google-like (pokygon -> polygon)

If you search for "pokygon" in google.com, then google automatically fix error, and searches for "polygon". Like google.com, if you search for "pokygon" in mathematica (V ...
imida k's user avatar
  • 3,807
1 vote
0 answers
54 views

Entire process of "hyperlink of paclet" to "location of real file"?

Hyperlink[AAAAA, "paclet:ref/ModularInverse"] AAAAA If I click AAAAA, then a tutorial notebook for ModularInverse.nb ...
imida k's user avatar
  • 3,807
2 votes
1 answer
155 views

How do I know which kernel is handling which .nb file? [closed]

OS : window 10 Mathematica : v12.2 By my mistake, I opened another mathematica kernel, not knowing a kernel was already running. I created a lot of .nb files and worked on them in another kernel, ...
imida k's user avatar
  • 3,807
0 votes
0 answers
21 views

Replacing System` definitions in a context whilst still maintaing acces to them [duplicate]

Given the system operator TensorContract I can define a new one, TensorContractLazy with the attribute ...
user3257842's user avatar
3 votes
3 answers
142 views

Quit the loop if encounter error message

First define length-component error (personal term) : This is an error when we want to get n-th component of a list if n is bigger then the length of the list. For example, ...
imida k's user avatar
  • 3,807
0 votes
0 answers
43 views

Extracting Track Data from System Modeler Satellite Demo

In this Demo and this one I am interested in extracting either 3DOF or 6DOF track data. How can I do this? There is a Satellite.nb notebook that works with System Modeler there is a variable, r0rot, ...
Phillip D. Neumiller's user avatar
1 vote
1 answer
73 views

Edit UnicodeCharacters.tr-File

I want to install a new package in Mathematica. If I understand the userguide right, I also have to edit the UnicodeCharacters.tr-File by another *.tr-File for example containing 0x2219 [...
Joju127's user avatar
  • 11
2 votes
0 answers
63 views

Error message window upon launching Mathematica

Upon launching Mathematica (v. 11.3) I always get the Messages window with "An unknown menu command token (RebuildHelpIndex)...", as shown below. How do I eliminate that?
David G. Stork's user avatar
1 vote
1 answer
47 views

Temporarily prevent/allow exporting to specific folders

Is it possible to temporarily Q1) prevent exporting to specific folders ? Q2) allow exporting to only specific folders ? Whenever mathematica is about to process ...
imida k's user avatar
  • 3,807
2 votes
2 answers
193 views

Reduce and Solve are taking forever

I am running the following script to solve a system of equations. However, it has been running for 12 hours by now with no output. Is this typical? What is happening? Is there anything wrong with how ...
Morcus's user avatar
  • 165
0 votes
1 answer
75 views

How to use Reduce to solve matrix/vector equation

Suppose $A$ is an $2 \times 2$ matrix of unknowns, and $x$ is an $2 \times 1$ vector of unknowns. How can I use $A$ and $x$ as variables to be solved for in Reduce or FindInstance? example given a ...
Morcus's user avatar
  • 165
0 votes
1 answer
80 views

Solving complicated linear system [closed]

I have this system and I would solve it with mathematica, I try with the instruction Solve but I have an error Please help me.
Espoir's user avatar
  • 1
2 votes
0 answers
73 views

Solving a system of four non-linear differential equation

Could someone help me with my problem? I've been scratching my head over this for a day now. I can't write the right code to solve this non-linear differential equation system: ...
TEMS's user avatar
  • 21
4 votes
2 answers
422 views

Multiplication of one big integer and a long list of integers - fast

This is an example of multiplying a big integer to a list of integers. ...
imida k's user avatar
  • 3,807
0 votes
0 answers
110 views

Plot a system of differential equations

I would like to plot the solutions to the system of ODEs that is written below: ...
Agaph's user avatar
  • 71
2 votes
0 answers
96 views

Read Mac Touch ID In Mathematica

Apple seems to provide some support for developers to authenticate users biometrically with the touch id sensor in the form of a swift API (see here). I'm wondering if there is an easy way to do this ...
user2757771's user avatar
3 votes
3 answers
257 views

Solving for a unique set of solutions

I have the following code: ...
Jan Eerland's user avatar
  • 1,941
1 vote
1 answer
134 views

System of PDE with integration conditions interior of domain

I am trying to solve this system of pde numerically. I am unable to find any method in Mathematica that can handle this problem. The issue is having this integration condition in the domain. I tried ...
mathfun's user avatar
  • 103
3 votes
0 answers
78 views

System`Private`*Entry* and *Valid*, or: How does Mathematica know which expression is which?

Goal The answers to this question are intended to be a place to describe the behavior and mechanism of the undocumented functions of the form System`Private`*Entry* ...
thorimur's user avatar
  • 8,825
5 votes
2 answers
870 views

I believe Beep uses the system sound which is obnoxious and rude. How does one create a friendlier less intrusive sound?

Beep is a terrible sound for alerting when a background task has successfully completed. It was primarily designed for errors or when a task fails. That's why it's ...
Jules Manson's user avatar
  • 2,347
3 votes
0 answers
57 views

Definition of large expression - makes PC freezed

In[1] A=Range[10^4];?A Out[1] (* definition of A*) It works for 10^4. But if I increase the number to 10^6 ...
imida k's user avatar
  • 3,807
1 vote
3 answers
228 views

How solve this nonlinear equations system by 12 unknowns?

We consider the following integral equation of mixed type: $x[t]=\frac{t^4}{6} -\frac{t^3}{3} +t+\Sigma_{\mu=1}^2\int_{0}^t k_\mu[t,s]G_\mu[s,x[s]]ds ,0\leq t\leq 1 $ ; (1) where $k_1 [t, s] = s^3$...
user68119's user avatar
5 votes
1 answer
219 views

How to run wolfram code from the finder in macos?

I'd like to run wolfram code (probably a .wls script) on a file or set of files by selecting them in the finder and using Right-click > Services. For example, ...
M.R.'s user avatar
  • 30.9k
1 vote
1 answer
81 views

About Blue Screen of Windows System after starting Mathematica 12.2/12.1 Win10

After starting Mathematica, My computer will Blue Screen. Mathematica version is 12.2 win10. An error of Win10 shows ...
shrocat's user avatar
  • 189
2 votes
2 answers
990 views

Solving a non-linear system of equations symbolically [closed]

How would I solve this systems of non-linear equations symbolically: $$ \mu N -\frac{\beta S I}{N} - \nu S = 0 \qquad (1)$$ $$\frac{\beta S I}{N} -\gamma I - \nu I = 0 \qquad (2)$$ $$\gamma I - \nu R =...
Math's user avatar
  • 445
2 votes
0 answers
90 views

Read newer version of Mathematica file

I am not sure if this question is silly, but I have the Mathematica version 12.1 and my friend has the Mathematica version 12.0 and he cannot read my files. How can I save the files in the version 12....
John's user avatar
  • 1,551
0 votes
1 answer
204 views

Solve system of 5 unknowns and 5 nonlinear equations

I attached below the system of 5 equations that I am not able to solve using FindRoot. I also tried without defining the equations as functions but It didn't work. ` ...
carlo antonello's user avatar
1 vote
0 answers
42 views

Standalone Kernel No input available

I have encountered the same problem as the thread attached. Mathematica stuck in "running" for every calculation I attempt, kernel error However, when I try to launch a standalone kernel ...
may14's user avatar
  • 11
1 vote
0 answers
41 views

Get a system from a array of expressions [closed]

I have an array of expresions like: A = {x+y-5, x-y-1} I need to set all expresions to zero (transforming each expression into a function) and turn it into a ...
user70148's user avatar
1 vote
1 answer
46 views

What is my current scope if I change `Inspector>Cell options>Evaluation options>CellContext` to "Notebook"?

I mean I made this change: Now, Clear["Global`*"] and Names["Global`*"] are not working anymore. I tried ...
vasili111's user avatar
  • 1,057
2 votes
0 answers
52 views

When making a package, how can I make a function that is already used by system?

Obviously, Plus[a,b] is given by Mathematica but say I have a package and I want to name a function Plus[a,b]. How can I go ...
Brandon's user avatar
  • 101
2 votes
0 answers
56 views

Can Mathematica be set to remind user to save after a set number of unsaved edits have occurred or after a set amount of time has passed?

I lost half a night's work just now because after about 6 months of learning and working with Mathematica it finally decided to crash on me for the very first time. Yeah my bad. At least I can ...
Jules Manson's user avatar
  • 2,347
3 votes
1 answer
109 views

Cannot find a way to close a toolbar. I believe it's the Templating toolbar

Today I was looking at the menu: Windows > Toolbar > Templating (and the others) which I was able to toggle show/hide but this one refuses to toggle. I hope I am not stuck with it. I noticed that ...
Jules Manson's user avatar
  • 2,347
24 votes
5 answers
593 views

Is mathematica adequately improving?

A bit of a loaded question, but in your opinion is Wolfram's team making good progress on improving their software? I've used Mathematica for almost 10 years now, and honestly I'm personally ...
Steven Sagona's user avatar
2 votes
2 answers
47 views

System of Differential Equations discrepancy

Using the following code in Mathematica: ...
Ashish's user avatar
  • 77
2 votes
0 answers
65 views

How might one deal with a run-away job, short of "force quitting"?

I've done some miscoding, and I'm in a loop that's producing output quite rapidly. So, it seems that I can't really get the Abort Evaluation or Quit Kernel options to "take". Of course, I can Force ...
Paul B. Slater's user avatar
1 vote
2 answers
138 views

Solving a big system of equations using certain conditions

I have the following problem: I want to solve a big system of equations for a certain number of variables which I call $a_k$, the variables need to satisfy the following conditions: all $a_k\in\mathbb{...
Jan Eerland's user avatar
  • 1,941
3 votes
1 answer
72 views

Upvalues of modified system functions

Suppose that someone (e.g. the author of a package I need to use) modifies the upvalues of a system function in the following way ...
vsht's user avatar
  • 3,427
2 votes
0 answers
36 views

Possible to add a `Find "string"' to the Toolbar?

It would be nice to have a persistent "Find" feature on the tool bar. I find the FindAndReplaceDialog to be clumsy on MacOs. I could do this with a DockedCell, but then I would need to do it for ...
Craig Carter's user avatar
  • 3,607
1 vote
0 answers
56 views

Converting an .rtf file to a .nb file without data loss

I unfortunately had a notebook have a syntax error and I would have lost weeks of work. To fix this, I was able to save my old notebook as a .rtf file without any excessive data loss. When I convert ...
aspirateur's user avatar
1 vote
1 answer
1k views

Gauss-Seidel method

I am trying to solve a system of equations with Gauss Seidel method.I reached this point but there is some problem,and I can't find a result.This is the system. ...
User1234's user avatar
2 votes
0 answers
146 views

Difference between versions of WolframScript

On my computer (Windows 10) I currently have installed 4 instances of wolframscript.exe. They represent different versions of WolframScript program and each file is ...
Pinti's user avatar
  • 6,453
3 votes
1 answer
104 views

Automatically load init.m without sharing CellContext

I'm trying to set up Mathematica such that all functions/variables defined in my init.m are automatically loaded into any new notebook I open. This works as a default, but I would also ideally like to ...
KHAAAAAAAAN's user avatar