what's with the random number generation at the start? how does rand() + 3\*rand... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

andrewcooke on June 17, 2011 | parent | context | favorite | on: Bitcoin trojan caught in the wild

what's with the random number generation at the start? how does rand() + 3*rand() improve on just rand()?

mootothemax on June 17, 2011 [–]

There's a great series of answers to this on StackOverflow:

http://stackoverflow.com/questions/3956478/understanding-ran...

In short: doing things like this actually reduces the randomness of the end result.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact