https://sudonull.com/arrays-and-cache-o-1-access-optimization
We analyze why sequential access to arrays is 7–10 times faster than random. Benchmarks of strides, matrices, AoS/SoA. Acceleration up to 10× for middle/senior dev.
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In this project
https://sudonull.com/matrix-downsampling-filter-50m-points
Pixel-perfect rendering of scatter plots: matrix filter vs LTTB/M4. 100% coverage on 50 million points. Code, benchmarks, metrics for developers.
https://sudonull.com/zachman-matrix-in-erp-structure-and-examples
Study the Zachman matrix for IT architecture of ERP systems. Examples of filling, application in implementation and audit projects. Structure architecture without gaps — for developers and architects.
https://sudonull.com/hdmi-matrix-in-home-assistant-rs-232-integration
Set up TV source switching between rooms via Home Assistant and 4×4 HDMI matrix. Step-by-step code for Coordinator, media_player entity, protocol. For middle/senior dev. Install in 13 min.
https://sudonull.com/4-approaches-to-ai-development-matrix-for-programmers
Get to grips with 4 strategies for using LLM in programming. Learn when to apply autocomplete, vibe-coding, augmented development, and agentic engineering.
From other projects
https://ymaho.com/malaria-vaccine-r21-approved-by-who-75-efficacy
WHO approved second malaria vaccine R21/Matrix-M with 75% efficacy. Learn about benefits, price, and impact on children's health in Africa. Read more in the article.
https://ymaho.com/phytoceramides-vs-ceramides-what-pharmacy-cosmetics-hide
Glycosylceramides provide only 18% barrier restoration compared to 34% for animal ceramides. Find out why 'phytoceramides' are not a replacement. Choose wisely.
From the web
How to Multiply Matrices - Math is Fun
https://www.mathsisfun.com/algebra/matrix-multiplying.html
A Matrix is an array of numbers: A Matrix (This one has 2 Rows and 3 Columns). To multiply a matrix by a single number, we multiply it by every...
Multiplying Matrices - GeeksforGeeks
https://www.geeksforgeeks.org/maths/multiplying-matrices/
Jun 4, 2026 · Matrix multiplication is a binary operation that produces a new matrix from two matrices. For multiplication , the number of columns in the first matrix must equal the number of rows in the second matrix . The resulting matrix ( matrix product) has the same number of rows as the first matrix and the same number of columns as the second matrix .
Jul 11, 2026 ·
https://math.libretexts.org/Courses/Canada_College/Linear_Algebra_and_Its_Application/02%3A_Matrices/2.02%3A_Matrix_Multiplication
Jul 11, 2026 · This page covers matrix multiplication , focusing on conformability and examples, while addressing properties such as non-commutativity and the identity matrix . It highlights the significance of the …
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