hangulmath — Hangul jamo as mathematical symbols

Version 0.5 (2026-10-10)

Mathematical notation draws almost entirely on Latin and Greek letters. hangulmath adds the 40 letters (jamo) of modern Korean Hangul as math symbols: 14 basic consonants, 5 double consonants, 10 basic vowels and 11 compound vowels.

\usepackage{hangulmath}
...
\[ \hangulsum\tiut_{k=1}^{n} \giug_k , \qquad \mium^2 \vec{A} = -\mu_0 \vec{J} \]

Each symbol has an official name following the Revised Romanization of Korean (\giyeok, \nieun, ...), and consonants have a four-letter alias that is easy to remember (\giug, \niun, \diud, \liul, ...). Vowels are written as pronounced with a trailing h (\ah, \eoh, \uah). \hangulsum, \hangulint and \hangullim turn any symbol into a sum-, integral- or limit-like operator.

Requirements

• XeLaTeX or LuaLaTeX (the package uses fontspec; pdfLaTeX is not supported).
• LaTeX kernel 2022-06-01 or later.
• No Korean font needs to be installed: the symbols come from the bundled fonts hangulmath-sans.otf and hangulmath-sans-light.otf.

Files

Installation

Install from CTAN with your TeX distribution (tlmgr install hangulmath), or copy hangulmath.sty, hangulmath-metrics.def and the two .otf files next to your document. In a TDS tree, put the .sty and .def files in tex/latex/hangulmath/ and the fonts in fonts/opentype/public/hangulmath/.

On Overleaf, upload the same four files and set the compiler to XeLaTeX (or add a latexmkrc file containing $pdf_mode = 5;).

The documentation is compiled with xelatex hangulmath-doc (twice); it uses the Noto Serif CJK KR font for its Korean prose.

License

Copyright (C) 2026 Inkyu Park <icpark00@gmail.com>

The package files may be distributed and/or modified under the conditions of the LaTeX Project Public License, version 1.3c or (at your option) any later version. The latest version of this license is in https://www.latex-project.org/lppl.txt. This work has the LPPL maintenance status maintained; the Current Maintainer is Inkyu Park.

The bundled fonts are modified (subset and renamed) versions of Noto Sans CJK KR, Copyright 2014-2021 Adobe, distributed under the SIL Open Font License 1.1 (see OFL.txt).

hangulmath — 한글 자모 수학 기호

현대 한글 자모 40자(기본 자음 14, 쌍자음 5, 기본 모음 10, 복모음 11)를 수식 기호로 쓸 수 있게 하는 LaTeX 패키지입니다. XeLaTeX 또는 LuaLaTeX에서 동작하며, 기호용 글꼴이 함께 들어 있어 한글 글꼴을 따로 설치할 필요가 없습니다. 자세한 사용법은 hangulmath-doc.pdf를 보십시오.