Not exactly free ... laziness and the resulting thunks do use up extra processing time and memory. But in many cases it is a price worth paying. http://www.cs.

Not exactly free ... laziness and the resulting thunks do use up extra processing time and memory. But in many cases it is a price worth paying. http://www.cs.chalmers.se/~rjmh/Papers/whyfp.html http://www.cs.chalmers.se/~rjmh/Papers/whyfp.html