Posts written in English, newest first. Everything else on this site is in Korean — the full archive lives at 블로그.
What a Google Docs Add-on Can and Cannot See: The Permissions, Explained
The install consent screen compresses everything into a few lines. Here is each permission the add-on requests, what it reaches, what it does not reach, why it is needed at all, and how to revoke i...
One Missing Dollar Sign, One Failed Compile: Finding It Before LaTeX Does
Missing dollar inserted, and the line number it points at is not where the problem is. Why an unclosed math delimiter poisons everything after it, why one mistake produces a cascade of errors, and ...
How to Get Equations Out of Google Docs on an iPad
On a desktop you download the Doc as Word and drop it in. On an iPad the Drive app hands you a PDF instead, and a PDF has no structure a converter can read. Two routes around it, in the order worth...
Your .gdoc File Will Not Open: Why, and the Drive Import Path Around It
Download a Google Doc and you get a one-kilobyte file no tool will open, because a .gdoc is a pointer rather than a document. What the Import from Google Drive button does, which permission it uses...
Word Equation Objects Are Not Text — Why Your Converter Finds Nothing
An equation typed with the Word equation editor is not a run of characters — it is a separate object inside the file, and no amount of adding dollar signs around it will help. What the docx actuall...
How to Ask ChatGPT for Math You Can Actually Paste Into a Document
Whether a chatbot answer converts cleanly is decided by the request, not by the conversion tool. Why the delimiter a tool can read is not the delimiter you should ask for, what survives the copy pa...
Fix ChatGPT's LaTeX in Word: The Four Shapes It Arrives In
Paste a ChatGPT answer into Word and its equations arrive in one of four shapes: bare square brackets, bare parentheses, cases and matrix rows glued together by a lost backslash, or clean dollar si...
Detected 0 Equations: Recovering a Document With No LaTeX Delimiters
The file opened, there was no error, and the equation count came back zero. Almost always that means the document contains no LaTeX delimiters at all. How detection actually decides, how the zero-r...
LaTeX Math Delimiters: Which of the Four to Use, and Where Each Breaks
One dollar sign, two dollar signs, backslash-paren, backslash-bracket. Four ways to wrap the same equation, from two different eras, with different failure modes in Markdown, in chatbot answers, an...
How to Convert LaTeX in Google Docs: Install to First Equation
You have LaTeX sitting as plain text in a Google Doc and you want it to look like an equation. This walks the whole path once: installing the add-on from the Marketplace, what the first-run consent...
What Google Docs' Equation Editor Actually Stores
We opened up equations built with the Google Docs equation editor and logged the structure Apps Script returns. It is a small tree with LaTeX command names already in it. Here is the full function ...