Last updated: May 16, 2026
gdpark.blog is an educational site written and edited by gdpark. It
publishes conversational study notes on physics, finance, CFA, economics,
statistics, and AI.
Original work
The posts on this site are based on notes I originally wrote myself under
the same author identity, gdpresent. gdpark.blog is the
author-maintained English edition of that archive: rewritten, edited, and
corrected by me for English readers. Provenance is documented at the site level
on the About and Editorial pages, while the article pages themselves are kept
focused on the English edition.
Editorial process
I aim to make hard topics easier to understand without pretending the notes are a textbook. Posts usually begin as study notes, derivations, examples, or worked explanations. When I adapt earlier notes, I preserve the voice but edit for clarity, terminology, correctness, and readability in English.
Sources and corrections
Many posts are based on standard coursework, textbooks, professional study materials, or public documentation. When a post uses an external source directly, I link or name it where useful. If you find a factual error, broken image, typo, or outdated explanation, please email presentgdpark@gmail.com or open an issue on GitHub.
Finance and CFA notes
Finance, investing, economics, and CFA posts are for education and study only. They are not investment advice, financial planning, tax advice, legal advice, or a recommendation to buy or sell any security.
CFA Institute does not endorse, promote, or warrant the accuracy or
quality of this site. CFA and Chartered Financial Analyst are registered
trademarks owned by CFA Institute.
Advertising
Ads, if shown, do not influence what gets written here. I do not sell positive coverage, paid links, or sponsored study notes.