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2024-06

スポンサーリンク

[Linear Algebra] Matrix operations, row basis transformations, sweep method, factorials, determinants, eigenvalues, eigenvectors, diagonalization

A branch of mathematics that studies the properties of vector spaces and linear maps. It deals mainly with matrices, vectors and systems of linear equations and is widely applied in various fields of science, engineering and economics. The factorial of a matrix indicates the intrinsic dimension of the matrix and the number of independent equations. The number of non-zero rows when the matrix is transformed into a staircase matrix by row basis transformation.

[Mia] Simulate every step of the packing process.

ちなみに最初の100台の組み立てに関しては、手作業で自分達で行うことにした。コストカットと、自分達が全工程を把握していないと、次の量産の段階でも明確な指示が出せないので。今回使用するTTP223タッチセンサーは、100個セットで届いているので1つずつに分解して、ピンヘッダーをハンダする必要がある。ひたすらハンダしていく。

2024.06.02 2024.06.08

EntrepreneurMia

[ESP32] Create NVS encryption key and encrypt NVS partition

Create a new NVS key partition as a dedicated partition for storing the encryption keys required to use the NVS encryption function of ESP32 As an NVS key partition, Type must be data and Subtype must be nvs_keys.

2024.06.05 2024.06.08

Development/Design

[Thinking Fitness] How do you train yourself to keep thinking instead of thinking?

Of course, being to the point, having a quick mind and being able to concentrate at a moment's notice are important, but only up to the upper middle level. From there onwards, the people will be at the same level as the above base, so I personally think that the two factors of 'health' and 'thinking stamina' make the difference.

2024.06.02 2024.06.08

[ESP32] How to deal with stack overflow error after MQTT communication that occurred after migration to ESP-IDF

Stack overflow is a phenomenon in which a task runs out of allocated stack memory Stack overflows can occur due to the receiving or parsing process of MQTT messages Sometimes it can be solved by changing the stack size setting in the sdkconfig file. This can be resolved by changing the stack size setting in the sdkconfig file.

2024.06.02 2024.06.08

Development/Design

[PdM] How to prioritize products? Identifying the trunk and branches

Product managers (PdMs) tend to be busy with a mountain of requests for functional improvements from other departments and customers, especially in the growth phase, depending on the phase of the product. This article describes my theory on how to prioritise products as a PdM.

2024.06.06 2024.06.07

[ESP32 x PlatformIO] How to coexist the framework with Arduino and ESP-IDF

PlatformIO allows the Arduino and ESP-IDF frameworks to be used together: by setting framework = arduino, espidf in platform.ini, many existing Arduino libraries can be used directly, thus reducing the need for code porting This saves time and effort in porting and rewriting code.

2024.06.02 2024.06.06

Development/Design

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