1. Modulo operation #
Created Tuesday 30 June 2020
Modulo Operation
- Simplty asks the remainder when a is divided by n
remainder when a/n = a mod(n)
Congruence
This is different from modulo operation. It is actually a comparison operator.
Two numbers a and **b **are said to be congruent if they belong to the same bucket.
iff 
- = and ≡ are different
- Important: a ≡ b mod(n) ↔ -a ≡ -b mod(n)