[Haskell-beginners] Haskell triangular loop (correct use of (++))

[Sumit Sahrawat, Maths & Computing, IIT (BHU)]

Haskell is a declarative language. The primary means of programming in a
declarative language is to provide definitions for stuff, similar to
mathematics. e.g. inc x = x + 1

If you want to define a value using an explicit sequence of steps, then you
have to use monads. The Haskell wikibook has a good tutorial on using the
state monad to generate random numbers. This allows mutation, preventing
which is one of Haskell's prime features, so I wouldn't recommend wiring
code like this.

Complexity analysis is usually tricky in Haskell. You can refer to the book
'purely functional days structures' to know more.

Regards,
  Sumit
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