https://community.wolfram.com RSS Feed for Wolfram Community showing questions tagged with Mathematica sorted by active. https://community.wolfram.com/groups/-/m/t/3700131 Does anyone know when Mathematica Version 15.0 will be released? Lan Wei 2026-04-22T01:55:15Z https://community.wolfram.com/groups/-/m/t/3644908 **TL;DR** I'm looking for someone to refactor a Mathematica notebook I've got from a fellow researcher so I can use it as a reliable reference implementation. I expect it's a few hours of work for the right person. I can offer financial compensation and/or my own technical expertise. Hello Wolfram community! I hope this is the right place for this kind of request. If not, my apologies! I'm a PhD student in the final stage of my project, an attempt at closed-loop control of water jets from firefighting robots using UAV imagery as feedback. The controller design is based on the Smith predictor architecture, which requires a predictive model to compensate for the long dead time of the system. Accurately predicting the trajectory of water jets is far from trivial. One of the most promising models I could find is described in https://link.springer.com/article/10.1007/s10694-021-01175-1. The model is formulated as a system of ordinary differential equations. I tried implementing it in Python so I can integrate it with my other components. It's almost complete, but despite several months of debugging I haven't been able to resolve the remaining issues. So I contacted the corresponding author. They confirmed some errors I found in the printed versions of the equations, and kindly provided their original Mathematica implementation. This helped, but my own implementation is still incomplete. The issues could stem from additional errors in the printed equations I/we haven't found yet, mistakes in my implementation, or differences in solver behavior (Mathematica's vs. SciPy's solve_ivp() function). Unfortunately, the notebook is hard for me to follow and differs quite a bit from the published paper (structure, variable naming, angle conventions, etc.). I've never worked with Mathematica and don't have the time nor patience to properly learn it before my deadline. The author is currently unable to provide further support, but since I'm getting more and more desperate to finish this subproject, I'm now seeking third-party help. I'm looking for someone to refactor the notebook into a clean, well-structured reference implementation. Specifically, I'd like them to - remove unused and redundant code (many expressions are duplicated) - improve structure - improve documentation - add small quality-of-life improvements if appropriate - flag any noticeable discrepancies The refactored version must reproduce the original results, in particular the figures shown in the paper. Ideally, it should make it easy to experiment with the equations and parameters. One specific goal is to verify whether the rearranged equation forms I use in Python (to match SciPy's solver interface) produce the same results as the original formulation. If you're interested, I'll obtain the author's permission and share the notebook privately so you can assess the scope before we discuss compensation. Bonus points if you have experience with physics-based simulations and are open to occasional follow-up questions :) Many thanks and regards! Merlin Stampa 2026-02-24T20:34:23Z https://community.wolfram.com/groups/-/m/t/3694230 Has anyone installed Mathematica on the new MacBook Neo? The machine uses the A18 phone processor and has only 8 GB memory, but online reviews claim it has surprisingly good performance. I'm considering buying one for travel, but wondering how well Mathematica performs on it. John Shonder 2026-04-17T13:35:21Z https://community.wolfram.com/groups/-/m/t/3662265 ![enter image description here][1] Usually, we insert a small number of images in a notebook using the method shown in the figure. If there are many images to insert, what method can be used to insert all image files in a certain folder at once? [1]: https://community.wolfram.com//c/portal/getImageAttachment?filename=%E5%B1%8F%E5%B9%95%E6%88%AA%E5%9B%BE2026-03-15201412.png&userId=3593842 Bill Blair 2026-03-15T12:17:13Z https://community.wolfram.com/groups/-/m/t/3660974 Hello everyone, I am trying to use Wolfram g to use the Assistant. When I enter a query for example " Top 10 countries with the most engineers" The I get the subject error. Reporting the issue fails as well, saying something went wrong. ![enter image description here][1] [1]: https://community.wolfram.com//c/portal/getImageAttachment?filename=Capture1.PNG&userId=2698757 What is causing this error? How do I get this tool to work correctly? Be well, Ian Ian Anwar 2026-03-14T16:28:16Z https://community.wolfram.com/groups/-/m/t/3645383 How do you tackle complex systems without getting lost in the code? Join us for a live Q&A with Ankit Naik, author of Thinking in Systems, Not Code, a book born from years of practical experience with Modelica, system-level modeling, and systems thinking. Ankit will dive into the ideas behind the book, including how to understand complex, multi-domain systems through structure, feedback, and interactions – not just code. Bring your questions! Don't miss out! Whether you're interested in system modeling, Modelica or Wolfram System Modeler, or ways to apply systems thinking in real-world projects, this is your opportunity to engage directly with the author. Watch the livestream tomorrow, February 26th at 9 AM CST on the [Wolfram R&D YouTube channel][1]! ![enter image description here][2] > Order the book here: https://a.co/d/07FFxRUd [1]: https://youtube.com/live/vnDNQ4YzyeE [2]: https://community.wolfram.com//c/portal/getImageAttachment?filename=MasteringComplexsystems.jpg&userId=20103 Keren Garcia 2026-02-25T15:19:30Z https://community.wolfram.com/groups/-/m/t/3635801 I have a few code samples which freeze or crash my kernel on evaluation, can anybody confirm that this isn't a local issue for me? Discrete: AudioGenerator[{"Color", AudioGenerator[TimeSeries[{1}, {1}]]}] Continuous: AudioGenerator[{"Color", AudioGenerator[{"Sawtooth", .4, 5}]}] Joseph Stocke 2026-02-06T21:20:51Z https://community.wolfram.com/groups/-/m/t/3609706 I am just getting started with Mathematica and I have become familiar with quite a few basic operations. I wanted some advice on solving a complicated equation which I have encountered. This is the equation I am trying to solve for $\alpha1^{\circ}$: $$ \text{c1} \left(\frac{1}{\cos (\text{$\alpha $1} {}^{\circ}) \sqrt{1-\text{M1}^2 \sin ^2(\text{$\alpha $1} {}^{\circ})}-\text{M1} \sin ^2(\text{$\alpha $1} {}^{\circ})}+\text{M1}\right) = \text{$\alpha $2} (\text{M2}+1)$$. In this equation, $M1$, $M2$, $c1$ and $c2$ are all non-zero and non-negative constants. I have worked out by hand the solution of this equation but I want to understand how I can do this in Mathematica. This is the approach which I have used: 1. In the complicated equation let $$ Y = \cos (\text{$\alpha $1} {}^{\circ}) \sqrt{1-\text{M1}^2 \sin ^2(\text{$\alpha $1} {}^{\circ})} - \text{M1} \sin ^2(\text{$\alpha $1} {}^{\circ}) $$ This then simplifies the equation of interest to $$ \text{c1} \left(\text{M1}+\frac{1}{\text{Y}}\right) = \text{$\alpha $2} (\text{M2}+1)$$ 2. The last simplified equation can be solved for $Y$ which yields $$ Y = \frac{\text{c1}}{-\text{c1} \text{M1}+\text{c2} \text{M2}+\text{c2}} $$ Since the solution $Y$ is composed entirely of constants, the final solution will also be a constant. Thus, let $$ K = \frac{\text{c1}}{-\text{c1} \text{M1}+\text{c2} \text{M2}+\text{c2}} $$. With this simplification the equation of interest becomes $$ Y = K$$ Substituting the simplified form of $Y$ from Step 1) leads to $$ \cos (\text{$\alpha $1} {}^{\circ}) \sqrt{1-\text{M1}^2 \sin ^2(\text{$\alpha $1} {}^{\circ})} - \text{M1} \sin ^2(\text{$\alpha $1} {}^{\circ}) = K $$ 3. In $Y$, let $$ x = \sin^{2}(\alpha1)$$ then $Y$ in terms of $x$ becomes $$ Y = \sqrt{1-x} \ \ \sqrt{1-\text{M1}^2 x}-\text{M1} x $$ 4. The last equation can be solved for $x$ and after substituting the relevant expressions the final answer will be given in terms of $\sin^{-1}$ and there will be four solutions of $\alpha1$. These are the four major steps I have used to manually solve the equation. Can someone please advise on what would be right approach to solve this in Mathematica ? What would be the right approach? I have attached here the notebook with the LHS and RHS parts of the equation typed in. &[Wolfram Notebook][1] [1]: https://www.wolframcloud.com/obj/2676b94b-7ea0-4e80-855c-d289b958efe4 Ishan Nande 2026-01-19T17:03:04Z https://community.wolfram.com/groups/-/m/t/3606471 How to set a Mathematica notebook to save as PDF in A4 paper size? After finishing a Mathematica notebook, how do I ensure it is saved as a PDF with A4 paper size? How do I set this up? Bill Blair 2026-01-15T08:52:16Z https://community.wolfram.com/groups/-/m/t/3561969 When you post a Notebook containing figures (PNGs) in a Wolfram community post, the display quality is significantly reduced and the lines are jagged as if with very low resolution even if in the desktop Notebook the quality is very good. Any hint on how to improve the quality of the pictures displayed? I will now do some test in this post to reproduce the problem. If I insert the figures directly in the post, the quality is good: ![Static Electron][1] But if I use Add Notebook to insert the Notebook with the same picture, the lines are jagged: &[Wolfram Notebook][2] **So, the only solution I see to have a good display in the Wolfram Community would be to split the Notebook in many smaller Notebooks each time you have a figure in your Notebook and insert the pictures manually in the post or using HTML.** But this seems like an absurd effort.... &[Wolfram Notebook][3] then introduce manually the pictures, (which if there are several, you cannot insert as a table in the post, but even a screenshot has better quality than if the pictures are included in the Notebook): ![enter image description here][4] And then the Add Notebook with second part of the Notebook: &[Wolfram Notebook][5] Sample equation as code Sample, why isn't it displayed as in the Notebook? \[DifferentialD]Overscript[v, \[RightVector]]/\[DifferentialD]t=(\[DifferentialD]^2/\[DifferentialD]t^2)Overscript[q, \[RightVector]]=e/(m \[Gamma](v)) (Overscript[E, \[RightVector]]+Overscript[u, \[RightVector]] *Overscript[B, \[RightVector]]-1/c^2 Overscript[v, \[RightVector]]((Overscript[E, \[RightVector]]+Overscript[u, \[RightVector]] *Overscript[B, \[RightVector]])Overscript[v, \[RightVector]])) Any guidance will be most welcome. [1]: https://community.wolfram.com//c/portal/getImageAttachment?filename=1_Static_Electron.png&userId=3338874 [2]: https://www.wolframcloud.com/obj/d422d677-78e6-4f04-b475-251ba92f8a1f [3]: https://www.wolframcloud.com/obj/d172f604-6246-418f-aaf0-079bc458d84a [4]: https://community.wolfram.com//c/portal/getImageAttachment?filename=Capturadepantalla2025-10-19162135.png&userId=3338874 [5]: https://www.wolframcloud.com/obj/c68424a9-6ee4-4cc1-83d8-5601e9b4a31f Juan Barandiaran 2025-10-18T07:42:40Z https://community.wolfram.com/groups/-/m/t/3605004 I don't like the default initial window size. In older versions (prior to 14), I could put this init.m FrontEndExecute[ { SetOptions[FrontEnd`InputNotebook[], WindowSize -> {Scaled[.8], Scaled[.7]} ], SetOptions[FrontEnd`InputNotebook[], WindowMargins -> {{40, Automatic}, {Automatic, 40}} ], $PlotTheme = "Classic"; } ] into C:\ProgramData\Mathematica\Kernel. However, this does not seem to work in version 14.1. So, in 14.1, how can I use init.m to control the initial window size? Robert Baillie 2026-01-12T15:39:36Z https://community.wolfram.com/groups/-/m/t/3581574 I have installed the NVIDIA CUDA Toolkit version 13.0 on my Windows 11 Pro PC. The PC is an HP Z2SFF G5 Workstation with 64 GB memory and an Intel Core i7-10700 CPU @ 2904 MHz. Windows 11 is version 10.0.26100, Build 26100. I have previously installed cupy and numba into my VS Code environment for Python development and that works just fine. I have done a fresh install of the CUDA Toolkit version 13.0 and NVIDIA driver version 581.8 on the PC. Commands like 'CUDADeviceCount[]', 'CUDAInformation[]' and 'CUDADriverVersio[]' all work correctly and without error. Executing the command 'InstallCUDA[]', however, gives the error 'Failed to find CUDA libraries'. Here's the bit of code I used for testing my installation Needs["CUDALink`"] InstallCUDA[] ![Error Message][1] The problem seem to be that the libraries (*.dll) are located in the folder C:\Brogram Files\NVIDIA GPU Toolkit\CUDA\V130\bin\x64, but Mathematica is looking for them in C:\Brogram Files\NVIDIA GPU Toolkit\CUDA\V130\bin. The Help for InstallCUDA[] says: "InstallCUDA uses heuristic methods to find the CUDA toolkit on your system." and "InstallCUDA returns a Failure object when it can not find or load the appropriate CUDA libraries." I was unsuccessful in trying to find what the heuristic actually does. I tried adding the correct folder to $Path with no effect. I tried copying the contents of the x64 folder to the bin subfolder, but this created a raft of additional errors. I tried running Mathematica as both a normal user and as system administrator. I'm sure I'm overlooking some simple solution to this issue, but will appreciate guidance from others. Thanks Pat [1]: https://community.wolfram.com//c/portal/getImageAttachment?filename=2192CUDAerrorMessagejpg.jpg&userId=531737 Pat Lane 2025-11-26T01:39:04Z https://community.wolfram.com/groups/-/m/t/3564807 I have been trying to factor semiPrimes for years now. I have a simple algebraic equation that gives one factor knowing only N. The only problem I have to find the value of x where y equals 1. I thought this was a simple thing, but with 200 digit numbers finding where y equals 1 on the graph takes some computation. I believe the computation is much smaller than recursive division, but factoring it is the only way to be sure. My question is how is Mathematica on computation? If I programmed the math algorithm in Mathematica will it be as efficient as a Xeon processor crunching numbers. I have tried computations in Mathematica before and it let me know it was processing but I had no information on the processes it was going through. And what functions in Mathematica would be used to find y equals 1 on a graph that is f(x} equals x? Seems like it should be easy. If I were doing the calculation by hand, I would choose test values and find the derivative or slope. But to find the x value with a 200 digit number there would be many close options for x. I know there are equations to solve this but I have never used them. So I need to know if Mathematica can handle the computational problem of 200+ digits, and if I think my method is less computational will Trurl’s method will be less computational to work in Mathematica. Bobby Joe Snyder 2025-10-23T22:29:34Z https://community.wolfram.com/groups/-/m/t/3444192 Team, I am very rusty on this one. I have been about 4 years away and returning to a new RB Pi 5.o. The problem is that I do not know how to get started with installation of Mathematica. I downloaded an Installation script. But from here I am lost. I click the file, but only opens a text file with a code. Can not get to go any further. Jose Calderon 2025-04-14T23:29:40Z https://community.wolfram.com/groups/-/m/t/3563034 Has anyone been able to install and run Mathematica on NVIDIA's new DGX Spark computer? If yes, does CUDA work? Does, NetTrain work? Are you able to train models? David Laxer 2025-10-21T17:21:12Z https://community.wolfram.com/groups/-/m/t/3562641 **The problem** I run Mathematica 12 from home via a Win11 VM on Proxmox. This configuration has run fine for years. Recently during an upgrade to Win11 25H2 I went to test to make sure everything was functional with a quick BenchmarkReport[] but it caused the kernel to die at Test 3, FFT. Its a very repeatable failure. Just before upgrading to 25H2 I had changed my processor type for this VM to x86-64-v3 +aes from -v2 + aes. I had issues on another vm where Win11 didnt want to upgrade with v2. I didnt originally run the processor as "host" as I am running dual E5-2699v4 Xeons, Win11 doesnt support by age despite having all the instructions needed. I have used this VM with Win10 and Win11 for years running Mathematica without issue. In the past I would use BenchmarkReport[] as a quick check of functionality after any upgrades or changes. This is the first time its failed. A quick test using ParallelTable[sin[x],{x,0,pi,10^-6}] works fine A quick test of Fourier[{1, 1, 2, 2, 1, 1, 0, 0}] works fine But a simple, Needs["Benchmark`"] BenchmarkReport[] Fails while calculating Step 3, FFT. The kernel simply die with no error message or warning. If I watch carefully with Task Manager it looks like the kernel dies, Mathematica recreates the kernel, then it dies again immediately. I also tried running this command through mathscript with -verbose but it gives me no additional details why its dying. I went back and tested some older notebooks I had. One of the first ones I tried died during a NonLinearModelFit of a PieceWise function with Sin[]s. Piecewise[{ { y0 + ( A1 Sin[ 2 \[Pi] ( x - x1)/t1] Sin[ 2 \[Pi] ( x - x2)/t2] ) + A3 Sin[2 \[Pi] (x - x3)/t3], x >= xon }, {y0, x < xon} }] This had worked in the past but now it dies just like BenchmarkReport, the kernel dies with no errors. **Fixes tried** So, I set the cpu back to v2 + aes for the vm config in proxmox but the kernel still dies. Set the cpu to Host in case its an issue with AES being passed correctly but it still dies I had Ballooning memory on so I turned it off, no change I had NUMA on so I turned it off, no change I uninstalled, reinstalled Mathematica 12.0 but it still fails I installed a demo copy of Mathematica 14.3, BenchmarkReport[] and my notebook run without issue. **System Info** Running a network version of Mathematica 12.0 with MathLM on another VM for the license. License is for 2 instances and 16 kernels. The VM is running under proxmox 8.4.14. The vm was just recently upgraded to Win11 25H2 but I am not sure when I last ran BenchmarkReport[]. I have run BenchmarkReport[] on this vm multiple times with some older flavors of win11 but I cant remember when I last ran it. I had recently installed the virtio drivers for this vm on the previous Win11 version but I hadnt run Mathematica since then. Could be a contributing factor. Proxmox has gone through a recent upgrade with a reboot of the host. I hadnt tried test Mathematica afterwards. Could be a contributing factor. The vm has been tested with cpu set to Host, x86-64-v2+aes, x86-64-v3+aes, numa on and off, ballooning on and off, with 32GB memory configured for the vm. This vm is set to get 2 processors of 8 cores each, The vm is only running microsoft virtual graphic drivers and is only accessed via remote desktop, not SPICE. As far as I can tell Win11 is working as expected. I am considering a fresh install of Win11 if no better ideas surface. The host system is dual E5-2699 v4 with 512GB. The host system runs a mix of vms and containers. **Summary** I know this is probably a very weird edge case of using a VM with such an old version of Mathematica. The kernel dying does seem to fail for more than just Benchmark so its most likely not a single package responsible. The failure is limited to Mathematica 12 as far as I can tell. Just wanted to figure this our before I start embarking on a bunch of calculations. Any thoughts are appreciated. Mike Morrell 2025-10-19T19:10:08Z https://community.wolfram.com/groups/-/m/t/3559794 I just downloaded and installed Mathematica Version 14.3. The notebook colors are completely different than those of earlier versions. My plots colors look terrible on the black/dark background. Is there a quick and easy way to change the version 14.3 notebook colors back to the way they were in version 14.2? Roger Backhus 2025-10-13T15:51:53Z https://community.wolfram.com/groups/-/m/t/3558755 New feature suggestion: It would be really great if Mathematica offered a way to automatically save an enhanced version of .nb that contains, in effect, the equivalent of a .mx file with the results of all of the cells that have already been evaluated. This combination .nb/.mx file (perhaps to be called .nbx?) would avoid the time/effort required to either: (1) save a .mx file at the end of each Mathematica session and re-load it at the start of the next session, or (2) redo the evaluation of the saved .nb file at the start of each new session. Thanks, RM Richard Makadok 2025-10-09T18:37:41Z https://community.wolfram.com/groups/-/m/t/3558367 Hello I tried using the shell script from wolfram website to install 14.2 on Trixie Didn’t work due to failed dependencies… So I downloaded these two pkgs manually from ftp.debian.org libprec3_8.39-13_arm64.deb; libwayland-egl1-mesa-22.3.6-1+deb12u1_arm64.deb And after installing them, I can proceed with the installation… Any suggestions if there is a better way? Ed Wong 2025-10-09T02:29:04Z https://community.wolfram.com/groups/-/m/t/3552254 Are there any compatibility problems with Ryzen CPUs? Mark Harder 2025-09-28T13:34:25Z