Prelude In Raku there's a notion called infinite list AKA lazy list which is defined and used like: my @inf = (1,2,3 ... Inf); for @inf { say $_; exit if $_ == 7 } # => OUTPUT 1 2 3 4 5 6 7 I'...

I am trying to solve Project Euler problem #12: The sequence of triangle numbers is generated by adding the natural numbers. So the 7th triangle number would be 1 + 2 + 3 + 4 + 5 + 6 + 7 = 28...

I have a piece of code which would code as follows: val e2 = for (e <- elements if condition(expensiveFunction(e))) yield { expensiveFunction(e) } Where the condition will be true for a few...

Given a starting number, imagine an infinite sequence of its successive halves. 1, 0.5, 0.25, 0.125, ... (Ignore any numerical instabilities inherent in double.) Can this be done in a single ex...

What is the most optimal way to find repetition in a infinite sequence of integers? i.e. if in the infinite sequence the number '5' appears twice then we will return 'false' the first time and 'tr...

What are some clever uses for infinite generators? I've seen lots of seemingly trivial examples like "list all even numbers", but I assume there must be others that have more applicability to...

Given a finite list of elements, how can I create a (lazily-evaluated, thanks LINQ!) infinite list that just keeps iterating over my initial list? If the initial list is {1, 2, 3}, I want the new ...

I am not a Google App Engine user. However, I understand you're billed for CPU time and other resources. What are the consequences if you happen to create an infinite loop? Will Google ever t...

I am looking through some example Fibonacci sequence clojure code: (def fibs (lazy-cat [1 2] (map + fibs (rest fibs)))) I generally understand what is going on, but don't get the point of lazy-...