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-rw-r--r--Emacs/.config/emacs/config.org97
1 files changed, 61 insertions, 36 deletions
diff --git a/Emacs/.config/emacs/config.org b/Emacs/.config/emacs/config.org
index 4badc6f..e77f573 100644
--- a/Emacs/.config/emacs/config.org
+++ b/Emacs/.config/emacs/config.org
@@ -2207,11 +2207,16 @@ to elfeed for loading the system.
#+end_src
** Magit
Magit is *the* git porcelain for Emacs, which perfectly encapsulates
-the git cli. In this case I just need to setup the bindings for it.
-As magit will definitely load after evil (as it must be run by a
-binding, and evil will load after init), I can use evil-collection
-freely. Also, define an auto insert for commit messages so that I
-don't need to write everything myself.
+the git CLI. It's so good that some people use Emacs just to use it.
+It's difficult to describe well without using it, in my opinion, and
+it integrates so well with Emacs that there is very little need to use
+the git CLI ever.
+
+In this case I just need to setup the bindings for it. As magit will
+definitely load after evil (as it must be run by a binding, and evil
+will load after init), I can use evil-collection freely. Also, define
+an auto insert for commit messages so that I don't need to write
+everything myself.
#+begin_src emacs-lisp
(use-package magit
@@ -2288,21 +2293,26 @@ Core proced config, just a few bindings and evil collection setup.
** Calculator
Surprise, surprise Emacs comes with a calculator.
-Greater surprise, this thing is over powered. It can perform the
-following (and more):
-- Matrix calculations
-- Generalised calculus operations
-- Equation solvers for n-degree multi-variable polynomials
-- Embedded mode (check below)!
-
~calc-mode~ is a calculator system within Emacs that provides a
diverse array of mathematical operations. It uses reverse polish
-notation to do calculations (though there is a standard infix
-algebraic notation mode).
-
-Embedded mode allows computation with the current buffer as the echo
-area. This basically means I can compute stuff within a buffer
-without invoking calc directly: $1 + 2\rightarrow_{\text{calc-embed}} 3$.
+notation, but there is a standard infix algebraic notation mode so
+don't be too shocked. It can do a surprising amount of stuff, such
+as:
++ finding derivatives/integrals of generic equations
++ matrix operations
++ finding solutions for equations, such as for finite degree multi
+ variable polynomials
+
+It also has this thing called embedded mode. This allows one to
+perform computation within a non ~calc-mode~ buffer. Surround any
+equation with dollar signs (such as 2^20, for example) and call
+~(calc-embedded)~ with your cursor on it to compute it. It'll replace
+the equation with the result it computed.
+
+Say I want to find the 4th power of 2 cos I'm writing some bit
+manipulation code and I need to set the 4th bit of some variable to 1.
+Instead of computing it outside of my editor then copying the result
+back in, I can just do it within Emacs. Pretty nifty, right?
#+begin_src emacs-lisp
(use-package calc
@@ -2881,24 +2891,33 @@ Counsel integration for projectile commands, very nice.
"K" #'devdocs-lookup))
#+end_src
* Org mode
-2023-03-30: finally decided to give org mode its own section.
-
-Org is, at its most basic, a markup language. Files use the ".org"
-extension and use =org-mode= to write text, with the ability to export
-to a few formats, all within Emacs. Some other features include:
-+ A complete spreadsheet system, with formulas (including
+Org is, at its most basic, a markup language. =org-mode= is a major
+mode for Emacs to interpret org buffers. org-mode provides a lot of
+capabilities, some are:
++ A complete table based spreadsheet system, with formulas (including
[[*Calculator][calc-mode]] integration)
-+ Evaluation of code blocks, even using the results of them in exports
- (to, say, a $\LaTeX$ or HTML document)
- + This includes exporting code blocks to a code file. All the
- emacs-lisp code blocks in this file are compiled to =config.el=
- ([[file:elisp/literate.el][literate]])
-+ Complete calendar/todo system with deadlines, scheduling and
- repeaters
++ Code blocks with proper syntax highlighting and editing experience
+ + Evaluation
+ + Export of code blocks to a variety of formats
+ + Export of code blocks to a code file (so called "tangling", which
+ is what occurs in this document)
++ Feature complete scheduling system with [[*Calendar][calendar]]
+ integration
+ + A clock-in system to time tasks
++ TODO system
+ Export to a variety of formats or make your own export engine using
- the org AST!
-+ Writing $\LaTeX$ inline, with the ability to render the fragments on
- demand
+ the org AST.
++ Inline $\LaTeX$, with the ability to render the fragments on
+ demand within the buffer
++ Links to a variety of formats:
+ + Websites (via http or https)
+ + FTP
+ + SSH
+ + Files (even to a specific line)
+ + Info pages
+
+I'd argue this is a bit more than a markup language. Like
+[[*Magit][Magit]], some use Emacs just for this system.
** Org Essentials
Org has a ton of settings to tweak, which change your experience quite
a bit. Here are mine, but this took a lot of just reading other
@@ -3157,8 +3176,14 @@ a very tidy way to manage your time.
"r" #'org-agenda-redo))
#+end_src
** Org capture
-2024-04-24: I actually need to clean this up, in particular explain
-what org-capture does.
+Org capture provides a system for quickly "capturing" some information
+into an org file. A classic example is creating a new TODO in a
+todo file, where the bare minimum to record one is:
++ where was it recorded?
++ when was it recorded?
++ what is it?
+Org capture provides a way to do that seamlessly without opening the
+todo file directly.
#+begin_src emacs-lisp
(use-package org-capture
:defer t