Author Archives: Jisang Yoo

How to make prettify-symbols-mode work with AUCTeX

prettify-symbols-mode is a recent feature of Emacs and it’s very nice. And it looks like it can replace TeX-fold-mode in the future. But, at the time of writing, prettify-symbols-mode doesn’t seem to work well with AUCTeX unless you enable two … Continue reading

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When OneDrive is stuck at syncing

Purely a OneDrive problem, but it may also concern┬áLaTeX users, Emacs users, etc.   Problem description   OneDrive is a great feature of MS Windows that many people and I love and use, but you might have encountered some issues … Continue reading

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Introduction to Wasserstein metric (earth mover’s distance)

Table of Contents 1. the cost of moving one particle 2. The cost of moving a finite collection of particles of total mass 1. 3. coupling 4. composing 5. definition of the Wasserstein distance 6. Moving a collection of particles … Continue reading

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How to close the sudden Camera app from Windows 8

Table of Contents 1. introduction 2. how to get out 3. how did I end up there 4. how to turn off the feature 5. further reading The readers are assumed to be familiar with names of basic Windows 8 … Continue reading

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Intuitions on problems from Elements of Information Theory Chapter 2

Table of Contents 1. meaning of conditional mutual information 2. comments on some selected problems from Chapter 2 2.1. Problem 2.6 2.2. Problem 2.14 2.3. Problem 2.23 2.4. Problem 2.27 2.5. Problem 2.41 This post is not about sharing solutions … Continue reading

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flood zones in Seoul

While looking for a place to live in Seoul, it came to my mind that I should check out which parts of Seoul tend to get flooded and here is what I found. Let’s hope that this post becomes obsolete … Continue reading

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Putting a bar or a tilde over a letter in LaTeX

As you are aware, there are commands to put a bar or a tilde over a symbol in math mode in LaTeX. Sometimes, the output doesn’t come out the way some of us might expect or want. Fortunately, there are … Continue reading

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why learn elisp (Emacs Lisp)

This post is the intro module of Living with Emacs Lisp. The goal of this post is to hopefully convince you why you should learn elisp. Readers are assumed to be beginning users of Emacs. (Of course he who does … Continue reading

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Type backslash easily in Emacs AUCTeX

Table of Contents 1. type slash to type backslash 2. use the two commands Writing LaTeX documents seem to require many presses of backslashes and the backslash key is located at awkward place and hard to type in some types … Continue reading

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Doob-Dynkin Lemma for probability space

Table of Contents 1. Proof 1 2. Proof 2 3. Proof 3 4. Uniqueness of H 5. applications Let f, g be measurable functions from a probability space to measurable spaces and respectively. Consider the following three conditions: (1) (in … Continue reading

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