Physics Formulae - physicsformulae.com now also lists physical constants, and you can easily copy and paste the LaTeX for the different expressed values of them. Have a look at the one in
The Comprehensive LaTeX Symbol List - CTAN
TLatex
math mode - How to typeset upright ħ? - TeX - LaTeX Stack Exchange
Photon fundamentals. (a) Show that $h c=1240\ \mathrm{eV} \c | Quizlet
symbols - How can I typeset the reduced Planck constant (ℏ)? - TeX - LaTeX Stack Exchange
PBMG latex (a) TEM core–shell structure; (b) SEM particle distribution | Download Scientific Diagram
New feature: Properly shown mathematical equations - #17 by EricGT - ChatGPT - OpenAI Developer Forum
LaTeX command of a "reduced Planck constant" - Rollpie
symbols - Reduced Planck's constant with two crossings - TeX - LaTeX Stack Exchange
fonts - How can I write a bold version of the reduced Planck constant, `\hbar`? - TeX - LaTeX Stack Exchange
math mode - How to typeset upright ħ? - TeX - LaTeX Stack Exchange
Nomenclatures - Overleaf, Çevrimiçi LaTeX Editörü
Creating fill-in-the-blanks handouts with LaTeX beamer - Chemical Quantum Images
GitHub - IdlePhysicist/go-latex: A Go parser to replace LaTeX macros with Unicode characters in Go source code.
Strikethrough - strike out text or formula in LaTeX | Math-Linux.com
Does physics suffer from a lack of physical constants? - Quora
Nomenclatures - Overleaf, Çevrimiçi LaTeX Editörü
Strikethrough - strike out text or formula in LaTeX | Math-Linux.com
LaTeX Guide - Fabrizio Musacchio
STJ on X: "Have you seen @sibinmohan's #annotatedequations & wished you could easily add some to your own presentations, too? It first seemed a bit cumbersome, and I can't stand code duplication,
Add third column to acronym - TeX - LaTeX Stack Exchange
symbols - Reduced Planck's constant with two crossings - TeX - LaTeX Stack Exchange
Nomenclatures - Overleaf, Online LaTeX Editor
Nomenclatures - Overleaf, Çevrimiçi LaTeX Editörü
How do you type the h-bar(ℏ) symbol in LaTeX? | Reduced Planck's constant