# -*- mode: org; -*-

#+TITLE: Morse code
#+SUBTITLE: The longest-lived telecommunication coding system.
#+AUTHOR: Marius Peter
#+DATE: <2022-04-05 Tue>

#+DESCRIPTION: Morse code: the longest-lived telecommunication coding system.


#+begin_abstract

#+end_abstract


* International Morse code

Rules:

1. A dash should last for three dots.
2. The delay between:
   1. two symbols is one dot,
   2. two letters is three dots,
   3. two words is seven points.
      
| Symbol | Coding  |
|--------+---------|
| A      | =·-=    |
| B      | =-···=  |
| C      | =-·-·=  |
| D      | =-··=   |
| E      | =·=     |
| F      | =··-·=  |
| G      | =--·=   |
| H      | =····=  |
| I      | =··=    |
| J      | =·---=  |
| K      | =-·-=   |
| L      | =·-··=  |
| M      | =--=    |
| N      | =-·=    |
| O      | =---=   |
| P      | =·--·=  |
| Q      | =--·-=  |
| R      | =·-·=   |
| S      | =···=   |
| T      | =-=     |
| U      | =··-=   |
| V      | =···-=  |
| W      | =·--=   |
| X      | =-··-=  |
| Y      | =-·--=  |
| Z      | =--··=  |
|--------+---------|
| 1      | =·----= |
| 2      | =··---= |
| 3      | =···--= |
| 4      | =····-= |
| 5      | =·····= |
| 6      | =-····= |
| 7      | =--···= |
| 8      | =---··= |
| 9      | =----·= |
| 0      | =-----= |