- #1

redount2k9

- 12

- 0

How to solve this: S(n) = { (a+b)/n } + { (2a+b)/n } + { (3a+b)/n } + ... + { (na+b)/n } where {x} represents fractional part of x. a,b,n are natural non-null numbers and (a,n)=1.

I don`t need only an answer, i need a good solution.

Thanks!