Hasnain says:

Where was this when I was a kid?

Some of these lessons are amazing; really insightful and easy to learn. For example, from HN comments:

a% of b == b% of a%. For example, computing 16% of 25 might be difficult but 25% of 16 is easy and they're the same thing. Not too surprising when you look into it, but just highlighting such tricks is great.

Posted on 2015-12-23T06:13:37+0000