This blog describes anything about @mrkn's thoughts, which includes computer programming (mostly Ruby, Haskell, and C++), mathematics, physics, and so on. Each article is written in English for learning it.


We can get faster fib just returning two values

How do you make fib fast?
I don't recomend using memoization because it require waste memory.
I recommend returning two values.

RSpec and Cucumber

I'm reading The RSpec Book.

I've understand:
  • RSpec should be used to describe the behavior of objects.
  • For describing the behavior of a library, Cucumber should be used.