// DIGITS · 0 → 9
Digits in Morse code.
10 digits, all coded with 5 symbols. Once the logic clicks, it takes under 10 minutes to memorise them all.
The digit 5 is the shortest to recognise (five dots), 0 the longest (five dashes). Every other digit slides smoothly between the two.
0−−−−−Five dashes — the long zone.1·−−−−One dot, four dashes: "the 1 leads, the 4 follow".2··−−−Two dots, three dashes — the off-centre split.3···−−Three dots, two dashes — middle exactly.4····−Four dots, one dash — almost all short.5·····Five dots — infinity counted.6−····One dash, four dots — mirror of 4.7−−···Two dashes, three dots — mirror of 3.8−−−··Three dashes, two dots — mirror of 2.9−−−−·Four dashes, one dot — mirror of 1.
The system logic
Morse digits follow a visual progression: 5 (·····) → 4 (····−) → 3 (···−−) → 2 (··−−−) → 1 (·−−−−). Then for digits 6 to 0 the pattern mirrors: 6 (−····) → 7 (−−···) → 8 (−−−··) → 9 (−−−−·) → 0 (−−−−−). Tip: remember 5 and 0, and the rest follow by counting how many dots flip to dashes.