DERIVATIONS(7)

✨ DERIVATIONS 💖 (section 7 of the manual, bestie)

okay so this is the manual page for derivations — the book Derivations of Applied Mathematics. and honestly? it's giving "the math homework nobody ever shows you" 🎀

🌸 NAME 🌸

derivations — it's a whole book, Derivations of Applied Mathematics 📚✨

💅 DESCRIPTION 💅

so here's the tea, and it's a real one: open-source program sources basically never derive the mathematical formulas they use. for various valid reasons, apparently. valid-ish. 🙈

but like — a user who doesn't wanna just take those formulas on faith might lowkey want to see them derived somewhere. and that's so fair of them honestly. main character behavior. 👑

Derivations of Applied Mathematics is a book that derives — and documents — so many of the mathematical formulas and methods that open-source programs use. and not just those! it also covers tons of the formulas and methods used in science and engineering generally. it ate, fr fr. 🔥

for example, it derives and documents:

• the Taylor series — used to calculate trigonometrics
• the Newton-Raphson method — used to calculate square roots
• the Pythagorean theorem — used to calculate distances
• and many others 💖

🦋 READING THE BOOK 🦋

among other ways, you can read the book right on your computer screen by opening the file /usr/share/doc/derivations/derivations.pdf with a PDF reader like, for example, evince(1). no cap, that's it. open the pdf, vibe with the math. ✨

🎀 FILES 🎀

• /usr/share/doc/derivations/derivations.pdf — the book in PDF 🫶

💀 BUGS 💀

the book remains a work in progress. (it's not a bug it's a journey, but also yes, noted. 😭)

👑 AUTHOR 👑

the book and this manpage are written by Thaddeus H. Black, who also maintains the Debian package derivations in which Debian distributes them. multi-talented icon behavior, we love to see it. 🌈

• need to contact the author in his role as Debian package maintainer? → <thb@debian.org> 💌
• however, most e-mail will naturally be about the book itself, and that should be sent to <thb@derivations.org> 📬

💜 COPYLEFT 💜

Copyright (C) 1983-2021 Thaddeus H. Black.

the book, this manpage and the entire derivations distribution are free software. you can redistribute them and/or modify them under the terms of the GNU General Public License, version 2. slay. 🧚

fr fr, that license line is not a vibe suggestion, it's the actual rule. read it, love it, respect it. ⭐

and that's the whole page, bestie!! this one was put together by Thaddeus H. Black, dated 7 January 2021, living in the section 7 of the manual as DERIVATIONS(7). go derive something iconic today. 💖✨🎀🦋🌸💅🫶