Comment

Moves C index to 2 on the D scale Moves indicating line to 2 on the C scale Reads 4 on the D scale

Good thing 2+2 and 2*2 yield the same answer. Would have to bust out the addiator otherwise

Sort:hotnew top

MeThisGuy@feddit.nl ⁨1⁩ ⁨day⁩ ago
abacus say what?

source
- Zerush@lemmy.ml ⁨14⁩ ⁨hours⁩ ago
  Yoy can use 2 normal rules to add/rest 2 numbers, but you can’t do it in a slide rule with its logarithm scales.
  
  source
Zerush@lemmy.ml ⁨1⁩ ⁨day⁩ ago
Well, but fails with 3+3, there an US engineer must use still an addiator. Nowadays it’s easier with an pocket calculator.

source