MathWorks Support Team

MathWorks

Last seen: 1 day ago | Active since 2009

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Answered
Why will MATLAB not start up properly on macOS?
If MATLAB is not launching properly, and you are not receiving any License Manager Errors, then you may perform the following so...

1 day ago | 12

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Answered
How to read and write AXI4/AXI4-Lite registers from code generated by Embedded Coder R2025b on a bare-metal MicroBlaze processor?
An IP core generated by HDL Coder exposes DUT ports as memory-mapped AXI4/AXI4-Lite registers. In this workflow, the MicroBlaze ...

1 day ago | 0

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Answered
Why are ROS 2 topics discoverable but not echoable when running a Simulink ROS 2 model in Normal mode in a Docker environment?
Docker 環境での ROS 2 に特有のノード検出タイミングに関する問題と考えられます。 DDS 層において、ノードのメタデータが完全に伝播する前にトピックが先に検出されてしまい、その結果としてサブスクライバが正しく動作しないことがあります。以下の手順...

1 day ago | 0

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Question

Why are ROS 2 topics discoverable but not echoable when running a Simulink ROS 2 model in Normal mode in a Docker environment?
MATLAB（Ubuntu 22.04ホスト）とDocker（Ubuntu 24.04）間でROS 2通信を試行しています。同一Domain IDを設定しSimulinkのROS 2ノードを実行したところ、ros2 topic list ではトピ...

1 day ago | 1 answer | 0

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Answered
Why are ROS 2 topics discoverable but not echoable when running a Simulink ROS 2 model in Normal mode in a Docker environment?
This behavior is likely related to a node discovery timing issue that is specific to ROS 2 in Docker environments. At the DDS la...

1 day ago | 0

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Question

Why are ROS 2 topics discoverable but not echoable when running a Simulink ROS 2 model in Normal mode in a Docker environment?
We are attempting to establish ROS 2 communication between MATLAB (running on an Ubuntu 22.04 host) and a Docker container (Ubun...

1 day ago | 1 answer | 0

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Answered
How can I troubleshoot license errors when using MATLAB Production Server on Kubernetes?
These errors may occur if the Kubernetes cluster is unable to resolve the license server's hostname. The Kubernetes cluster has ...

3 days ago | 0

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Question

How can I troubleshoot license errors when using MATLAB Production Server on Kubernetes?
I deployed MATLAB Production Server on a Kubernetes cluster using the reference architecture on GitHub. As per the prerequisites...

3 days ago | 1 answer | 0

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Answered
Why am I unable to install R2026a or newer on my macOS Intel?
MATLAB R2025b is the final release of MATLAB for Intel Mac. MATLAB is no longer available for Macs with Intel processors. Please...

3 days ago | 0

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Question

Why am I unable to install R2026a or newer on my macOS Intel?
I have a license to install the latest release of MATLAB but on the MathWorks Downloads page, the MathWorks Product Installer fo...

3 days ago | 1 answer | 0

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Answered
Modifying an example does not have a BER of zero
Most of our demos are developed with ideal scenarios and are not guaranteed to work for any scenario. In this situation, BER of ...

3 days ago | 0

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Answered
How do I view validation data when using the Bayesian Regularization Algorithm to train a neural network?
The function 'trainbr' that performs Bayesian regularization backpropogation disables validation stops by default. The reasoning...

3 days ago | 0

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Answered
How to handle NaNs in the response data in deep neural networks?
If you have data for "unknown" classes that you do not care about, you should remove them from the training set when using the d...

3 days ago | 0

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Answered
How to implement Green's function in MATLAB
MATLAB does not yet have a built-in function for computing Green's function. That being said, you can use the Symbolic Math...

3 days ago | 0

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Answered
SSO 経由で MathWorks アカウントにサインインしようとすると、「リクエストを処理できません」というエラーが表示されるのはなぜですか?
このエラーは、MathWorks アカウントではシングルサインオン（SSO）が有効になっていない一方で、大学側ではすでに有効になっている場合に、MathWorks 製品 Installer で発生することがあります。また、以下の旧式の MathWork...

3 days ago | 0

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Answered
.NET のリストアイテムのプロパティにアクセスするとエラーとなるのはなぜですか？
このエラーは、リストが構造体である場合に発生します。構造体は値(つまり参照ではない)であり、リスト項目は読み取り専用であるため、この方法でItemプロパティを変更することはできません。値をコピーし、コピーを変更して、リストに戻す必要があります。例： x...

3 days ago | 0

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Answered
高速に実行するための推奨マシンはありますか？
まず、最小限の時間で計算タスクを完了するために、MATLAB パフォーマンスを最適化する必要がありますが、アプリケーションのパフォーマンスは、システムリソースが十分にあるかどうかに依存します。他の多くのプロセスとともに MATLAB を実行すると、パフォー...

3 days ago | 0

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Answered
Simulink Online R2026a hangs when trying to save a new Simulink model with the save button.
In Simulink Online R2026a, this issue with saving models can be resolved programmatically or graphically. Follow the steps below...

6 days ago | 0

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Question

Simulink Online R2026a hangs when trying to save a new Simulink model with the save button.
I am trying to save my Simulink Online R2026a model by clicking the "save" button on the toolbar, but the model fails to save an...

6 days ago | 1 answer | 0

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Answered
How to protect intellectual property (IP) with an FMU exported from Simulink?
The FMI standard does not specify anything related to IP protection; however, "Standalone" FMU exports provide some degree of IP...

6 days ago | 2

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Answered
How can I use a custom STM32F4xx board with the new "Embedded Coder Support Package for STMicroelectronics STM32 Processors" ?
To configure your model for a STM32F4xx based board, open the Configuration Parameters. Go to Hardware Implementation > ...

6 days ago | 0

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Answered
How can I run my Simscape model on real-time hardware such as Speedgoat and Simulink Real-Time (SLRT)?
We have this documentation page with some best practices for preparing Simscape models for use with real-time hardware:Real-Time...

6 days ago | 0

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Answered
Classification Learner gives different results every time
The reason for the different results is by using k-fold cross-validation method. When starting a new session in the Classificat...

6 days ago | 1

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Answered
Why does a "Discrete‑Time Integrator" block in enabled and triggered subsystems only output its initial condition in MATLAB R2024b?
This behavior is expected when a "Discrete‑Time Integrator" block is placed inside enabled and triggered subsystems with certain...

7 days ago | 0

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Question

Why does a "Discrete‑Time Integrator" block in enabled and triggered subsystems only output its initial condition in MATLAB R2024b?
I am using MATLAB R2024b and created a "Discrete‑Time Integrator" block inside an enabled subsystem, which itself is inside a tr...

7 days ago | 1 answer | 0

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Answered
Personal License Passcode (PLP) やライセンスファイルとは何ですか？またどのように取得しますか？
Personal License Passcode（PLP）は、Windows マシン上で MATLAB R2007b 以前をインストールするために使用される、固有の番号列です。R2008a 以降では、PLP は MATLAB のインストールには使用されな...

7 days ago | 0

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Answered
Why do I get the error message "System target file 'speedgoat.tlc' cannot be found"?
In R2024a and later, Simulink Real-Time (SLRT) uses the "speedgoat.tlc" system target file for Speedgoat hardware. This system t...

7 days ago | 0

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Answered
Why does MATLAB R2025b crash when opening Simulink through MATLAB MCP Core Server on Windows with Codex?
Why does MATLAB Crash? This behavior occurs in MATLAB R2025b on Windows when MATLAB is launched through the MATLAB MCP Core Serv...

7 days ago | 0

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Answered
Why am I unable to generate graphics on some non‑Windows systems when using MATLAB Online?
MATLAB Online uses WebGL to render high‑performance and interactive graphics. In the past, Chromium‑based browsers (such as Goog...

7 days ago | 0

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Answered
활성화 도중 오류 354가 발생합니다.
이 오류는 라이선스의 연간 컴퓨터 재지정(이전) 횟수를 초과했을 때 발생합니다. 라이선스를 새 컴퓨터로 이전하려면 다음 재지정 가능 시점까지 기다려야 합니다. 그동안 다른 컴퓨터에 이미 MATLAB이 설치되어 있다면, Login ...

7 days ago | 0

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