ENERGYCODE is a personal technical blog about mathematics, statistics, data science and scientific computing. Posts are written as reproducible notebooks: the R and Python code that produces every figure, table and result is on the page, ready to copy and run.
What you will find here
- Number theory and integer sequences: identities, proofs and computations around OEIS sequences, repunits, tetrahedral and Catalan numbers.
- Linear algebra: structured matrices, determinants, powers and norms.
- Data science and statistics: model evaluation, exploratory analysis and real-world datasets.
- Scientific computing tools: small packages and utilities in R, Python, PARI/GP and Mathematica, collected under Projects.
Posts are written in English or Spanish, depending on the topic.
Author
The site is written and maintained by Enrique Pérez Herrero. You can follow his work on GitHub, Kaggle and Stack Overflow.
Feedback
Found an error, or have a question about a post? Use the Report an issue link at the end of any page to open an issue on GitHub, or write to .
How it is built
The site is made with Quarto. Code cells run on R and Python (Jupyter), and the site is deployed to Netlify. The full source is available on GitHub.
License
- Written content is licensed under Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0).
- Source code is released under the MIT License.
